2025 MSHS PRELIMS P1 Q12

2025 MSHS PRELIMS P1 Q12

Secondary 4
4 marks

It is given that \(a=\dfrac{b+2cd}{b-cd}\).

  1. Evaluate \(a\) when \(b=-8\), \(c=0.873\) and \(d=-2\). Give your answer correct to 2 significant figures.[2]
  2. Express \(b\) in terms of \(a\), \(c\) and \(d\).[2]

Solution:

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Answer:(a) \(1.8\) (b) \(\dfrac{cd(a+2)}{a-1}\)

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