2026 AHS P1 Q13

2026 AHS P1 Q13

Secondary 4
5 marks

The gradient function of a curve is given by \(\dfrac{\mathrm{d}y}{\mathrm{d}x}=3\sin\left(3x-\dfrac\pi2\right)+\dfrac\pi{(x-\pi)^2}\). This curve passes through the point \((2\pi,4)\). Find the equation of the curve.[5]

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Answer:\(y=-\cos\left(3x-\dfrac\pi2\right)-\dfrac\pi{x-\pi}+5\).

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