Changing the subject of formulae

Changing the subject of formulae

Secondary 2
3 marks
TGM Original Questions

Make the variable in square brackets the subject: \(x=\sqrt{\dfrac{3s-a}{s-b}}\) [\(s\)].[3]

Assume \(x\ge0\), \(x^2\ne3\) and \(a\ne3b\).

Solution:

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Answer:\(s=\dfrac{x^2b-a}{x^2-3}\).

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