Page 137 - ADVANCED MATH F.5

Form Five Form Five

Answers to Revision Exercise 6

 15 135 168  +  315 8 135  −
1. (a)  −    (b) −    
−
 315 8 135   408 
FOR ONLINE READING ONLY

(c) 15 135 168−
408

 x − 9  2  y − 7  2 4x − 2 46x + 94
2. (a)   +   = 1 (b) y =
 4   15  x − 2 10x + 16
(c) x = ( 21 y− 2 ) (d) yx + 3 12x − 2 256 0=

3sin3θ cos3y
3. (a) 2tan 2θ (b) − (c) tan x− (d)
4 cos8y

5. (a) 460° (b) 316.55° (c) 429.7° (d) 150− °

73 19
6. (a) π (b) π
72 30

35 9641
7. (a) − 3π (b) − π (c) π
6 14400

4 9
2
8. (a) 9θ + (b) (c) − (d) 6θ 2
3 8
10. (a) 144.1 , 58.5 ,35.9 ,121.5− °− ° ° ° (b) 139.26 , 107.38° − °

(1 2 ) n
ππ −
π
11. (a) 2 n π , 2 n + ,
2 5
1
(b) θ 2 n , or 2 n + π
π =
π
2
2 1 2 1
(c) θ π = n π+ , or θ − π = n + π
5 10 3 6
(d) θ 360 n°+ 69.2 or θ = ° = 360 n°− 32.3°

131
Mathematics for Advanced Secondary Schools

30/06/2024 18:02:33
ADVANCED MATH F.5 TG CHAPTERS.indd 131
ADVANCED MATH F.5 TG CHAPTERS.indd 131 30/06/2024 18:02:33