Page 115 - ADVANCED MATH F.5

Form Five Form Five

 − 3
x
44. (a) x∈ : 2−≤ ≤  (b) {y ∈ :1<  y < } 3

 2 
FOR ONLINE READING ONLY
(c) No solution
5450
45. (a) p = 12, q = 9, r = 5, s = (b) x − 1 is a factor of px
( )
33
46. (a)  99 11 − 121  (d) N = 297
 − 108 3 156 
 
  54 − 15 111 − 
(b) 99 − 11 − 121 (e)  99 108 − 54 

 108 3 − 156  1  − 11 3 15 
  297  
  54 15 111 −    121 − 156 111− 

(c)

47. (I, I , I ) (5, 4, 6)= 48. ( , , ) ( 4, 8, 12)mn p = −

2
1
3
224 448
49. (b) 27 x 20 and 9 x
16

1 1 90
50. (a) 2(2n + 1) − 2(2n + 3) (c) 4669

1 1 1 1
(b) + (d) +
6 ( 22n + ) 3 6 2(2n + 3)

109
Mathematics for Advanced Secondary Schools

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ADVANCED MATH F.5 TG CHAPTERS.indd 109