2009 RV AM P1 Solutions

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  • 8/14/2019 2009 RV AM P1 Solutions

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    2009 RVHS Prelim A. Maths (4038) Paper 1 Answer Key

    Q1(b) 2 2 3

    Q2.

    4 1

    1 , 15 5x y

    Q3.6 31

    7 43

    , 2, 5x y

    Q4(a) 3 (3 1)xe x , (b)1

    9

    Q5(a)5 1 2 3

    ( 3)( 4) 3 4

    x

    x x x x

    , (b)

    12

    12

    Q6(a) 2 or 3t t s , (b)215 /a m s , (c) 14 m

    Q7.2

    4 6sin

    (3 2sin )

    dy x

    dx x

    , 0.730 x rad

    Q8(b)3 3 7

    , ; ,2 2 4 4

    x x

    Q9. 8 cm and 2 cm

    Q10(a)1

    42

    k , (b) 4k

    Q11(a) 8 105 614 14,9 27

    T x T x , (b) 55 27

    Q12(a)2

    1, 3p q

    e , (b)

    12

    3y e

    Q13(a)21350 6

    5

    xh

    x

    , (c) height = 12 3 m