Mathematics 9709 · AS & A Level · Integration

Integration — practice question

The diagram depicts the curve $y = x e^{-\frac{1}{4}x^2}$, with $x \geq 0$, together with its maximum point $M$.
(a)[4]

Find the exact coordinates of $M$.

(b)[5]

By using the substitution $x = \sqrt{u}$, or by another method, determine by integration the exact area of the shaded region enclosed by the curve, the $x$-axis and the line $x = 3$.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: Apply the correct product rule

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