2009 Rv Am P1 Solutions

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2009 RVHS Prelim A. Maths (4038) Paper 1 Answer Key Q1(b) 2  2 3 4 1 Q2. x  1 , y  1 5 5

Q3.

1  6 3    , x  2, y  5 3  7 4 

Q4(a) e3 x (3 x  1) , (b) Q5(a)

1 9

5x  1 2 3 1   , (b) 2 ( x  3)( x  4) x  3 x  4 12

Q6(a) t  2 or t  3s , (b) a  15m / s 2 , (c) 14 m Q7.

dy 4  6sin x  , x  0.730 rad dx (3  2sin x)2

 3 3 7 , ;x  , 2 2 4 4 Q9. 8 cm and 2 cm 1 Q10(a) 4  k  , (b) k  4 2 14 14 5 Q11(a) T5  x 8 , T6   x10 , (b) 5 9 27 27 Q8(b) x 

1

Q12(a) p 

2 1 , q  3 , (b) y  e 3 2 e

1350  6 x 2 Q13(a) h  , (c) height = 12 3 m 5x

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