Find the exact values of the six trigonometric
functions of  if the terminal side of  contains the
point (8, –15).




                                         8

                                              -15
                                         r
                                               (8, -15)
8

     -15
17
x

        y
r
        (x, y)
Find the exact values of          (-3, 4)
the six trigonometric                5
functions of  if the         4
terminal side of  contains
the point (–3, 4).                 -3       x = -3
      4       3     =5
                                            y=4
                                            r=5
Sketch 330. Then find its reference angle.


 330 = 180 + 150
      = 180 + 90 + 60




 The reference angle is 360 – 330 or 30.
Sketch      . Then find
its reference angle.




The reference angle is
Find the exact value of         .

135 = 90 + 45
                          pos       pos
Suppose      is an angle in standard position whose
terminal side is in Quadrant III and
Find the exact values of the remaining five
Trigonometric functions of    .

            hyp
             opp
                                  -4

                             -3
                                       5
hyp
                    =
opp




           -4

      -3
                5

Alg2 lesson 13-3

  • 1.
    Find the exactvalues of the six trigonometric functions of  if the terminal side of  contains the point (8, –15). 8 -15 r (8, -15)
  • 2.
    8 -15 17
  • 3.
    x y r (x, y)
  • 4.
    Find the exactvalues of (-3, 4) the six trigonometric 5 functions of  if the 4 terminal side of  contains the point (–3, 4). -3 x = -3 4 3 =5 y=4 r=5
  • 5.
    Sketch 330. Thenfind its reference angle. 330 = 180 + 150 = 180 + 90 + 60 The reference angle is 360 – 330 or 30.
  • 6.
    Sketch . Then find its reference angle. The reference angle is
  • 7.
    Find the exactvalue of . 135 = 90 + 45 pos pos
  • 8.
    Suppose is an angle in standard position whose terminal side is in Quadrant III and Find the exact values of the remaining five Trigonometric functions of . hyp opp -4 -3 5
  • 9.
    hyp = opp -4 -3 5