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Inverse Trigonometric
      Functions
Inverse Trigonometric
      Functions
y  sin 1 x
Inverse Trigonometric
      Functions
y  sin 1 x
y  sin x                  y
                           1        y  sin x


                2                    2 x
                           -1
Inverse Trigonometric
      Functions
y  sin 1 x
y  sin x                        y
Domain: all real x               1        y  sin x
Range:  1  y  1
                      2                    2 x
                                 -1
Inverse Trigonometric
      Functions
y  sin 1 x
y  sin x                        y
Domain: all real x               1        y  sin x
Range:  1  y  1
NO INVERSE            2                    2 x
                                 -1
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1        y  sin x
 Range:  1  y  1
 NO INVERSE           2                       2 x
                          
Restricted Domain:   x           -1
                    2      2
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1        y  sin x
 Range:  1  y  1
 NO INVERSE           2                       2 x
                          
Restricted Domain:   x           -1
                    2      2
 Range:  1  y  1
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1        y  sin x
 Range:  1  y  1
 NO INVERSE           2                       2 x
                          
Restricted Domain:   x           -1
                    2      2
 Range:  1  y  1
  f 1 : y  sin 1 x
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1        y  sin x
 Range:  1  y  1
 NO INVERSE           2                       2 x
                          
Restricted Domain:   x           -1
                    2      2
 Range:  1  y  1
  f 1 : y  sin 1 x
 Domain:  1  x  1
 Range:    y  
          2       2
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1        y  sin x
 Range:  1  y  1
 NO INVERSE           2                       2 x
                          
Restricted Domain:   x           -1
                    2      2
 Range:  1  y  1
  f 1 : y  sin 1 x
 Domain:  1  x  1
 Range:    y  
          2       2
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1                         y  sin x
 Range:  1  y  1
 NO INVERSE           2                                        2 x
                                                    y
Restricted Domain:   x           -1
                    2      2                      
 Range:  1  y  1                               2
  f 1 : y  sin 1 x
 Domain:  1  x  1                     -1                   1      x

 Range:    y                             
                                                  
          2       2                               2
Inverse Trigonometric
       Functions
 y  sin 1 x
 y  sin x                          y
 Domain: all real x                 1                         y  sin x
 Range:  1  y  1
 NO INVERSE           2                                         2 x
                                                    y
Restricted Domain:   x           -1
                    2      2                                 y  sin 1 x
 Range:  1  y  1                               2
  f 1 : y  sin 1 x
 Domain:  1  x  1                     -1                   1      x

 Range:    y                             
                                                  
          2       2                               2
y  cos 1 x
y  cos 1 x               y        y  cos x
                           1
y  cos x

                2                  2 x
                           -1
y  cos 1 x                     y        y  cos x
                                 1
y  cos x
Domain: all real x
                      2                  2 x
Range:  1  y  1
                                 -1
y  cos 1 x                     y        y  cos x
                                 1
y  cos x
Domain: all real x
                      2                  2 x
Range:  1  y  1
                                 -1
  NO INVERSE
y  cos 1 x                       y        y  cos x
                                    1
 y  cos x
Domain: all real x
                      2                     2 x
Range:  1  y  1
                                    -1
   NO INVERSE
Restricted Domain: 0  x  
y  cos 1 x                       y        y  cos x
                                    1
 y  cos x
Domain: all real x
                       2                    2 x
Range:  1  y  1
                                    -1
   NO INVERSE
Restricted Domain: 0  x  
 Range:  1  y  1
y  cos 1 x                       y        y  cos x
                                    1
 y  cos x
Domain: all real x
                         2                  2 x
Range:  1  y  1
                                    -1
   NO INVERSE
Restricted Domain: 0  x  
 Range:  1  y  1


  f 1 : y  cos 1 x
y  cos 1 x                       y        y  cos x
                                    1
 y  cos x
Domain: all real x
                         2                  2 x
Range:  1  y  1
                                    -1
   NO INVERSE
Restricted Domain: 0  x  
 Range:  1  y  1


  f 1 : y  cos 1 x
 Domain:  1  x  1
 Range: 0  y  
y  cos 1 x                       y        y  cos x
                                    1
 y  cos x
Domain: all real x
                         2                  2 x
Range:  1  y  1
                                    -1
   NO INVERSE
Restricted Domain: 0  x  
 Range:  1  y  1


  f 1 : y  cos 1 x
 Domain:  1  x  1
 Range: 0  y  
y  cos 1 x                            y               y  cos x
                                         1
 y  cos x
Domain: all real x
                         2                              2 x
Range:  1  y  1
                                     -1
   NO INVERSE
Restricted Domain: 0  x                       y
 Range:  1  y  1                          

  f 1 : y  cos 1 x                        
 Domain:  1  x  1                         2

 Range: 0  y                                          x
                                    -1               1
y  cos 1 x                            y                      y  cos x
                                         1
 y  cos x
Domain: all real x
                         2                                     2 x
Range:  1  y  1
                                     -1
   NO INVERSE
Restricted Domain: 0  x                       y
 Range:  1  y  1                          
                                                     y  cos 1 x
  f 1 : y  cos 1 x                        
 Domain:  1  x  1                         2

 Range: 0  y                                                x
                                    -1                  1
y  tan 1 x
y  tan 1 x        y
                            y  tan x
y  tan x

                            x
y  tan 1 x                         y
                                             y  tan x
y  tan x
Domain:all real x except
                                             x
               
         x         k where
             2
       k is an integer
Range: all real y
y  tan 1 x                         y
                                             y  tan x
y  tan x
Domain:all real x except
                                             x
               
         x         k where
             2
       k is an integer
Range: all real y
  NO INVERSE
y  tan 1 x                         y
                                              y  tan x
 y  tan x
Domain:all real x except
                                              x
                
          x         k where
              2
        k is an integer
 Range: all real y
   NO INVERSE
Restricted Domain:    x  
                     2       2
y  tan 1 x                         y
                                              y  tan x
 y  tan x
Domain:all real x except
                                              x
                
          x         k where
              2
        k is an integer
 Range: all real y
   NO INVERSE
Restricted Domain:    x  
                     2       2
 Range: all real y
y  tan 1 x                         y
                                              y  tan x
 y  tan x
Domain:all real x except
                                              x
                
           x        k where
              2
        k is an integer
 Range: all real y
   NO INVERSE
Restricted Domain:    x  
                     2       2
 Range: all real y
  f 1 : y  tan 1 x
y  tan 1 x                             y
                                                  y  tan x
 y  tan x
Domain:all real x except
                                                  x
                    
           x            k where
              2
        k is an integer
 Range: all real y
   NO INVERSE
Restricted Domain:    x  
                     2       2
 Range: all real y
  f 1 : y  tan 1 x
 Domain: all real x
                          
 Range:             y
                2           2
y  tan 1 x                             y
                                                          y  tan x
 y  tan x
Domain:all real x except
                                                          x
                    
              x         k where
              2
        k is an integer
 Range: all real y                                y
                                              
   NO INVERSE                                     2
Restricted Domain:    x  
                     2       2
 Range: all real y
      1            1
                                                            x
  f        : y  tan x
 Domain: all real x                               
                                            
 Range:             y                          2
                2           2
y  tan 1 x                             y
                                                                y  tan x
 y  tan x
Domain:all real x except
                                                                  x
                    
              x         k where
              2
        k is an integer
 Range: all real y                                y
                                                     y  tan 1 x
   NO INVERSE                                     2
Restricted Domain:    x  
                     2       2
 Range: all real y
      1            1
                                                                     x
  f        : y  tan x
 Domain: all real x                               
                                            
 Range:             y                          2
                2           2
sin 1  x    sin 1 x   (odd function)
sin 1  x    sin 1 x      (odd function)
      1
            x     cos x
                         1      odd function shifted   
cos                                                       
                                                        2
sin 1  x    sin 1 x      (odd function)
      1
            x     cos x
                         1      odd function shifted   
cos                                                       
                                                        2
tan 1  x    tan 1 x      (odd function)
sin 1  x    sin 1 x       (odd function)
      1
            x     cos x
                            1    odd function shifted   
cos                                                        
                                                         2
tan 1  x    tan 1 x       (odd function)
                                 sum  
sin 1 x  cos 1 x 
                        2
sin 1  x    sin 1 x       (odd function)
           1
                 x     cos x1    odd function shifted   
     cos                                                         
                                                               2
      tan 1  x    tan 1 x       (odd function)
                                       sum  
      sin 1 x  cos 1 x 
                              2
e.g. Find the exact value of;
  i  tan 1 3  tan 1 1
sin 1  x    sin 1 x        (odd function)
             1
                   x     cos x
                                   1    odd function shifted   
     cos                                                          
                                                                2
      tan 1  x    tan 1 x        (odd function)
                                        sum  
      sin 1 x  cos 1 x 
                               2
e.g. Find the exact value of;
  i  tan 1 3  tan 1 1
          
            
         3        4
sin 1  x    sin 1 x        (odd function)
             1
                   x     cos x
                                   1    odd function shifted   
     cos                                                          
                                                                2
      tan 1  x    tan 1 x        (odd function)
                                        sum  
      sin 1 x  cos 1 x 
                               2
e.g. Find the exact value of;
  i  tan 1 3  tan 1 1
          
            
         3        4
         
     
         12
sin 1  x    sin 1 x          (odd function)
              1
                    x     cos x
                                    1     odd function shifted   
      cos                                                           
                                                                  2
       tan 1  x    tan 1 x         (odd function)
                                          sum  
      sin 1 x  cos 1 x 
                                2
e.g. Find the exact value of;
                                                          1       1  1 
  i  tan   1            1
                    3  tan 1            ii  sin   1
                                                              sin   
                                                         2          2
             
          3        4
          
      
          12
sin 1  x    sin 1 x          (odd function)
              1
                    x     cos x
                                    1    odd function shifted   
      cos                                                          
                                                                 2
       tan 1  x    tan 1 x         (odd function)
                                          sum  
      sin 1 x  cos 1 x 
                                2
e.g. Find the exact value of;
                                                    1       1  1 
  i  tan   1            1
                    3  tan 1            ii  sin
                                                1
                                                        sin   
                                                   2          2
                                                    
          3        4                             
                                                         
                                                  4  6
          
      
          12
sin 1  x    sin 1 x          (odd function)
              1
                    x     cos x
                                    1    odd function shifted   
      cos                                                          
                                                                 2
       tan 1  x    tan 1 x         (odd function)
                                          sum  
      sin 1 x  cos 1 x 
                                2
e.g. Find the exact value of;
                                                     1       1  1 
  i  tan   1            1
                    3  tan 1            ii  sin
                                                1
                                                         sin   
                                                    2          2
                                                     
          3        4                             
                                                          
                                                  4  6
                                                 5
                                              
          12                                      12
40
iii  cos sin 1
                    41
40
iii  cos sin 1               41
                    41   40
                                140
                              sin
                                  41
40
iii  cos sin 1               41
                    41   40
                                140
                              sin
                                  41
                               9
40
iii  cos sin 1               41
                    41   40
        9
                               1
                              sin
                                  40
        41                        41
                               9
40
iii  cos sin 1               41
                    41   40
        9
                               1
                              sin
                                  40
        41                        41
              5               9
iv  sin sin
         1

               6
40
iii  cos sin 1               41
                    41   40
        9
                               1
                              sin
                                  40
        41                        41
              5              9
iv  sin sin
         1
                 
               6   6
40
iii  cos sin 1                    41
                    41        40
        9
                                    1
                                   sin
                                       40
        41                             41
              5                   9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                     
                        5
40
iii  cos sin 1                                    41
                    41                  40
        9
                                                    1
                                                   sin
                                                       40
        41                                             41
              5                                   9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                            let   cos 1
                                               3
                        5                    5
40
iii  cos sin 1                                    41
                    41                  40
        9
                                                    1
                                                   sin
                                                       40
        41                                             41
              5                                   9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                            let   cos 1
                                               3
                                                                5
                        5                    5
                                                                    
                                                            3
40
iii  cos sin 1                                      41
                    41                  40
        9
                                                  sin
                                                       40
                                                       1
        41                                             41
              5                                   9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                            let   cos 1
                                               3
                                                                5
                        5                    5   4
                                                                    
                                                            3
40
iii  cos sin 1                                  41
                    41              40
        9
                                              sin
                                                   40
                                                   1
        41                                         41
              5                               9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                        let   cos 1
                                           3
                                                            5
                 5                       5   4
      2 sin  cos                                             
                                                        3
40
iii  cos sin 1                                  41
                    41              40
        9
                                              sin
                                                   40
                                                   1
        41                                         41
              5                               9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                        let   cos 1
                                           3
                                                            5
                   5                     5   4
      2 sin  cos                                             
      2  
           4 3                                          3
           
          5  5 
40
iii  cos sin 1                                  41
                    41              40
        9
                                              sin
                                                   40
                                                   1
        41                                         41
              5                               9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                        let   cos 1
                                           3
                                                            5
                   5                     5   4
      2 sin  cos                                             
      2  
           4 3                                          3
           
          5  5 
       24
     
       25
40
iii  cos sin 1                                      41
                    41              40
        9
                                                  sin
                                                       40
                                                       1
        41                                             41
              5                                   9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                        let   cos 1
                                           3
                                                                5
                   5                     5       4
      2 sin  cos                                                 
      2  
           4 3                                              3
           
          5  5 
     
       24                     vi  cos 1  2 cos  
                                                    
       25                                         3
40
iii  cos sin 1                                   41
                    41              40
        9
                                               sin
                                                    40
                                                    1
        41                                          41
              5                                9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                        let   cos 1
                                           3
                                                             5
                   5                     5    4
      2 sin  cos                                              
      2  
           4 3                                           3
           
          5  5 
       24                                2 cos    cos 1  2  1 
                              vi  cos   1
                                                                    
                                                                2
       25                                      3
40
iii  cos sin 1                                   41
                    41              40
        9
                                               sin
                                                    40
                                                    1
        41                                          41
              5                                9
iv  sin sin
         1
                 
               6   6

v  sin  2 cos 1 3 
                        let   cos 1
                                           3
                                                             5
                   5                     5    4
      2 sin  cos                                              
      2  
           4 3                                           3
           
          5  5 
       24                                2 cos    cos 1  2  1 
                              vi  cos   1
                                                                    
                                                                2
       25                                      3        1
                                                     cos 1
                                                    0
 sin 1 2  cos 1 1 
vii  tan                     
                  3          4
 sin 1 2  cos 1 1 
vii  tan                                          2
                                   let   sin 1
                  3          4                     3
 sin 1 2  cos 1 1 
vii  tan                                              2
                                       let   sin 1
                  3          4                         3

                                                   3
                                    2
                                                       
                                                  5
 sin 1 2  cos 1 1 
vii  tan                                              2                          1
                                       let   sin 1            let   cos 1
                  3          4                         3                          4

                                                   3                        4
                                    2                        15
                                                                               
                                                  5                       1
vii  tan sin 1 2  cos 1 1                   2                          1
                                    let   sin 1          let   cos 1
                   3          4                   3                          4
          tan   tan 
                                               3                      4
         1  tan  tan            2                    15
                                                                          
                                               5                     1
vii  tan sin 1 2  cos 1 1                   2                          1
                                    let   sin 1          let   cos 1
                   3          4                   3                          4
          tan   tan 
                                               3                      4
         1  tan  tan            2                    15
              2
                   15                                                    
              5                               5                     1
               2 
         1    15 
               5
vii  tan sin 1 2  cos 1 1                   2                          1
                                    let   sin 1          let   cos 1
                   3          4                   3                          4
          tan   tan 
                                               3                      4
         1  tan  tan            2                    15
              2
                   15                                                    
              5                               5                     1
               2 
         1    15 
               5
       25        3
         5
       52        15
          5
       25        3
     
       52        15
vii  tan sin 1 2  cos 1 1                   2                          1
                                    let   sin 1          let   cos 1
                   3          4                   3                          4
          tan   tan 
                                               3                      4
         1  tan  tan            2                    15
              2
                   15                                                    
              5                               5                     1
               2 
         1    15 
               5
       25        3
         5                      Exercise 1B; 1 to 5 ace etc, 6, 7ac, 8ac,
       52        15                9, 10ac, 11, 12ac, 14 to 20 evens
          5
       25        3
     
       52        15

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  • 2. Inverse Trigonometric Functions y  sin 1 x
  • 3. Inverse Trigonometric Functions y  sin 1 x y  sin x y 1 y  sin x  2   2 x -1
  • 4. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1  2   2 x -1
  • 5. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x -1
  • 6. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   Restricted Domain:   x  -1 2 2
  • 7. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   Restricted Domain:   x  -1 2 2 Range:  1  y  1
  • 8. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   Restricted Domain:   x  -1 2 2 Range:  1  y  1 f 1 : y  sin 1 x
  • 9. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   Restricted Domain:   x  -1 2 2 Range:  1  y  1 f 1 : y  sin 1 x Domain:  1  x  1 Range:    y   2 2
  • 10. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   Restricted Domain:   x  -1 2 2 Range:  1  y  1 f 1 : y  sin 1 x Domain:  1  x  1 Range:    y   2 2
  • 11. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   y Restricted Domain:   x  -1 2 2  Range:  1  y  1 2 f 1 : y  sin 1 x Domain:  1  x  1 -1 1 x Range:    y     2 2 2
  • 12. Inverse Trigonometric Functions y  sin 1 x y  sin x y Domain: all real x 1 y  sin x Range:  1  y  1 NO INVERSE  2   2 x   y Restricted Domain:   x  -1 2 2  y  sin 1 x Range:  1  y  1 2 f 1 : y  sin 1 x Domain:  1  x  1 -1 1 x Range:    y     2 2 2
  • 13. y  cos 1 x
  • 14. y  cos 1 x y y  cos x 1 y  cos x  2   2 x -1
  • 15. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1
  • 16. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE
  • 17. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x  
  • 18. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x   Range:  1  y  1
  • 19. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x   Range:  1  y  1 f 1 : y  cos 1 x
  • 20. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x   Range:  1  y  1 f 1 : y  cos 1 x Domain:  1  x  1 Range: 0  y  
  • 21. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x   Range:  1  y  1 f 1 : y  cos 1 x Domain:  1  x  1 Range: 0  y  
  • 22. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x   y Range:  1  y  1  f 1 : y  cos 1 x  Domain:  1  x  1 2 Range: 0  y   x -1 1
  • 23. y  cos 1 x y y  cos x 1 y  cos x Domain: all real x  2   2 x Range:  1  y  1 -1 NO INVERSE Restricted Domain: 0  x   y Range:  1  y  1  y  cos 1 x f 1 : y  cos 1 x  Domain:  1  x  1 2 Range: 0  y   x -1 1
  • 24. y  tan 1 x
  • 25. y  tan 1 x y y  tan x y  tan x   x
  • 26. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y
  • 27. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y NO INVERSE
  • 28. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y NO INVERSE Restricted Domain:    x   2 2
  • 29. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y NO INVERSE Restricted Domain:    x   2 2 Range: all real y
  • 30. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y NO INVERSE Restricted Domain:    x   2 2 Range: all real y f 1 : y  tan 1 x
  • 31. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y NO INVERSE Restricted Domain:    x   2 2 Range: all real y f 1 : y  tan 1 x Domain: all real x   Range:   y 2 2
  • 32. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y y  NO INVERSE 2 Restricted Domain:    x   2 2 Range: all real y 1 1 x f : y  tan x Domain: all real x     Range:   y 2 2 2
  • 33. y  tan 1 x y y  tan x y  tan x Domain:all real x except   x  x  k where 2 k is an integer Range: all real y y  y  tan 1 x NO INVERSE 2 Restricted Domain:    x   2 2 Range: all real y 1 1 x f : y  tan x Domain: all real x     Range:   y 2 2 2
  • 34. sin 1  x    sin 1 x (odd function)
  • 35. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2
  • 36. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)
  • 37. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2
  • 38. sin 1  x    sin 1 x (odd function) 1  x     cos x1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2 e.g. Find the exact value of; i  tan 1 3  tan 1 1
  • 39. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2 e.g. Find the exact value of; i  tan 1 3  tan 1 1     3 4
  • 40. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2 e.g. Find the exact value of; i  tan 1 3  tan 1 1     3 4   12
  • 41. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2 e.g. Find the exact value of; 1 1  1  i  tan 1 1 3  tan 1 ii  sin 1  sin      2  2   3 4   12
  • 42. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2 e.g. Find the exact value of; 1 1  1  i  tan 1 1 3  tan 1 ii  sin 1  sin      2  2     3 4      4  6   12
  • 43. sin 1  x    sin 1 x (odd function) 1  x     cos x 1  odd function shifted    cos    2 tan 1  x    tan 1 x (odd function)   sum   sin 1 x  cos 1 x  2 e.g. Find the exact value of; 1 1  1  i  tan 1 1 3  tan 1 ii  sin 1  sin      2  2     3 4      4  6  5   12 12
  • 44. 40 iii  cos sin 1 41
  • 45. 40 iii  cos sin 1 41 41 40 140 sin 41
  • 46. 40 iii  cos sin 1 41 41 40 140 sin 41 9
  • 47. 40 iii  cos sin 1 41 41 40 9  1 sin 40 41 41 9
  • 48. 40 iii  cos sin 1 41 41 40 9  1 sin 40 41 41 5 9 iv  sin sin 1 6
  • 49. 40 iii  cos sin 1 41 41 40 9  1 sin 40 41 41 5  9 iv  sin sin 1  6 6
  • 50. 40 iii  cos sin 1 41 41 40 9  1 sin 40 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3     5
  • 51. 40 iii  cos sin 1 41 41 40 9  1 sin 40 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3  5 5
  • 52. 40 iii  cos sin 1 41 41 40 9  1 sin 40 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5  3
  • 53. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  3
  • 54. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  2 sin  cos   3
  • 55. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  2 sin  cos    2   4 3 3     5  5 
  • 56. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  2 sin  cos    2   4 3 3     5  5  24  25
  • 57. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  2 sin  cos    2   4 3 3     5  5   24 vi  cos 1  2 cos     25  3
  • 58. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  2 sin  cos    2   4 3 3     5  5  24  2 cos    cos 1  2  1  vi  cos  1      2 25  3
  • 59. 40 iii  cos sin 1 41 41 40 9  sin 40 1 41 41 5  9 iv  sin sin 1  6 6 v  sin  2 cos 1 3    let   cos 1 3 5  5 5 4  2 sin  cos    2   4 3 3     5  5  24  2 cos    cos 1  2  1  vi  cos  1      2 25  3 1  cos 1 0
  • 60.  sin 1 2  cos 1 1  vii  tan   3 4
  • 61.  sin 1 2  cos 1 1  vii  tan 2  let   sin 1  3 4 3
  • 62.  sin 1 2  cos 1 1  vii  tan 2  let   sin 1  3 4 3 3 2  5
  • 63.  sin 1 2  cos 1 1  vii  tan 2 1  let   sin 1 let   cos 1  3 4 3 4 3 4 2 15   5 1
  • 64. vii  tan sin 1 2  cos 1 1  2 1  let   sin 1 let   cos 1  3 4 3 4 tan   tan   3 4 1  tan  tan  2 15   5 1
  • 65. vii  tan sin 1 2  cos 1 1  2 1  let   sin 1 let   cos 1  3 4 3 4 tan   tan   3 4 1  tan  tan  2 15 2  15    5 5 1  2  1    15   5
  • 66. vii  tan sin 1 2  cos 1 1  2 1  let   sin 1 let   cos 1  3 4 3 4 tan   tan   3 4 1  tan  tan  2 15 2  15    5 5 1  2  1    15   5 25 3  5 52 15 5 25 3  52 15
  • 67. vii  tan sin 1 2  cos 1 1  2 1  let   sin 1 let   cos 1  3 4 3 4 tan   tan   3 4 1  tan  tan  2 15 2  15    5 5 1  2  1    15   5 25 3  5 Exercise 1B; 1 to 5 ace etc, 6, 7ac, 8ac, 52 15 9, 10ac, 11, 12ac, 14 to 20 evens 5 25 3  52 15