Mathematics 9709 · AS & A Level · Integration

Integration — practice question

The diagram depicts a section of the curve $y = 1 - \frac{4}{(2x + 1)^2}$. The curve meets the $x$-axis at $A$. The normal drawn to the curve at $A$ cuts the $y$-axis at $B$.
(i)[4]

Obtain formulas for $\frac{dy}{dx}$ and $\int y \, dx$.

(ii)[4]

Find coordinates for $B$.

(iii)[4]

Find the area of the shaded region, showing all necessary working.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: Derivative found correctly by applying the chain rule

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