2024 IGCSE Additional Mathematics May/June 0606/11 Q11

2024 IGCSE Additional Mathematics May/June 0606/11 Q11

10 marks

The tangent to the curve \(y=(3x-1)^{\frac13}\) at the point where \(x=3\) meets the coordinate axes at the points \(A\) and \(B\). The point with coordinates \((a,a)\) lies on the perpendicular bisector of the line \(AB\). Find the exact value of \(a\).[10]

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Answer:\(a=-\dfrac{15}8\)

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