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1 The coefficient of x3 5
A B
C
D
Y X
7 8
in the expansion of 1 − px
6
cm E
D
C
B
A
O
1.8
rad
The diagram shows a major arc AB of a circle with centre O and radius 6 cm.
Points C and D on OAand OB respectively are such that the
line AB is a tangent at E to the arc CED of a smaller circle
alsowith centre O. Angle COD = 1.8 radians.
(i) Find the radius of the arc CED, correct to 3 significant figures. [2]
(ii) Find the area of the shaded region. [4]
0
1 +
x
2
1n
2
10cm
D
C
B
1.2 rad
A O
The diagram shows a metal plate ABCD made from two parts.
The part BCD is a semicircle.
Thepart DAB is a segment of a circle with centre O
and radius 10 cm. Angle BOD is 1.2 radians.
The radius of the semicircle is 5.646 cm, correct to 3 decimal places.
θ θ
θ
+ θ θ θ θ
+
−
≡
−
sin
sin cos
cos
sin cos
1
sin cos
.
2 2
ii Hence solve the equation
sin
sin cos
cos
sin cos
3,
θ
θ θ
θ
+ θ θ
+
−
= for 0 360 .
 
θ




f : 5 3cos
1
2
x x is defined for π
0 2
x
° °
is −2160.
Find the value of the constant p. [3]
In the diagram, CXD is a semicircle of radius 7 cm with centre A
and diameter CD.
The straight line YABX is perpendicular to CD, and the arc CYD
ispartof a circle with centre B and radius 8 cm. Find
the total area of the region enclosed by the two arcs. [5]
2
[3]
[4]
4 The function → +
θ
3 i Show that
7 0
2
x x for 0 x 360 .
 
ii Hence find the solution of the equation θ θ




+ 



4sin − =
1
2
8cos
1
2
7 0
2
for 0 360 .
5 i Solve the equation 4sin + −
8cos =
3).
1 1
x − =
− −
6 Find the value of x satisfying the equation sin ( 1) tan ( [3]
7
8 In the expansion of 3 − 2x
9
(ii) Find the perimeter of the metal plate. [3]
(iii) Find the area of the metal plate. [3]
, the coefficient of x is 7.
Find the value of the constant n andhence find the coefficient of x
π
O
–1
1
2
3
–π 2π
y
y = a + bsin x
x
π
1
2
– –
1
–π
2
– –
3π
2
3
2
– π
The diagram shows part of the graph of = + sin
10
  .
i Solve the equation f(x) 7
= , giving your answer correct to 2 decimal places. [3]
° °  
θ [2]
° ° [4]
11 a Find the first three terms, in ascending powers of y, in the expansion of (1+ )4
5 2 2
x x , find the coefficient of 5 2 )
2 4
x x .
. [4]
y a b x.
State the values of the constants a and b. [2]
[2]
[3]
y .
b By replacing y with − x in the expansion of (1+ −
4

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AS Maths Test.pdf

  • 1. 1 The coefficient of x3 5 A B C D Y X 7 8 in the expansion of 1 − px 6 cm E D C B A O 1.8 rad The diagram shows a major arc AB of a circle with centre O and radius 6 cm. Points C and D on OAand OB respectively are such that the line AB is a tangent at E to the arc CED of a smaller circle alsowith centre O. Angle COD = 1.8 radians. (i) Find the radius of the arc CED, correct to 3 significant figures. [2] (ii) Find the area of the shaded region. [4] 0 1 + x 2 1n 2 10cm D C B 1.2 rad A O The diagram shows a metal plate ABCD made from two parts. The part BCD is a semicircle. Thepart DAB is a segment of a circle with centre O and radius 10 cm. Angle BOD is 1.2 radians. The radius of the semicircle is 5.646 cm, correct to 3 decimal places. θ θ θ + θ θ θ θ + − ≡ − sin sin cos cos sin cos 1 sin cos . 2 2 ii Hence solve the equation sin sin cos cos sin cos 3, θ θ θ θ + θ θ + − = for 0 360 . θ     f : 5 3cos 1 2 x x is defined for π 0 2 x ° ° is −2160. Find the value of the constant p. [3] In the diagram, CXD is a semicircle of radius 7 cm with centre A and diameter CD. The straight line YABX is perpendicular to CD, and the arc CYD ispartof a circle with centre B and radius 8 cm. Find the total area of the region enclosed by the two arcs. [5] 2 [3] [4] 4 The function → + θ 3 i Show that 7 0 2 x x for 0 x 360 . ii Hence find the solution of the equation θ θ     +     4sin − = 1 2 8cos 1 2 7 0 2 for 0 360 . 5 i Solve the equation 4sin + − 8cos = 3). 1 1 x − = − − 6 Find the value of x satisfying the equation sin ( 1) tan ( [3] 7 8 In the expansion of 3 − 2x 9 (ii) Find the perimeter of the metal plate. [3] (iii) Find the area of the metal plate. [3] , the coefficient of x is 7. Find the value of the constant n andhence find the coefficient of x π O –1 1 2 3 –π 2π y y = a + bsin x x π 1 2 – – 1 –π 2 – – 3π 2 3 2 – π The diagram shows part of the graph of = + sin 10 . i Solve the equation f(x) 7 = , giving your answer correct to 2 decimal places. [3] ° ° θ [2] ° ° [4] 11 a Find the first three terms, in ascending powers of y, in the expansion of (1+ )4 5 2 2 x x , find the coefficient of 5 2 ) 2 4 x x . . [4] y a b x. State the values of the constants a and b. [2] [2] [3] y . b By replacing y with − x in the expansion of (1+ − 4