Mathematics 9709 · AS & A Level · Coordinate geometry

Coordinate geometry — practice question

The diagram includes a section of the curve $y = (x - 2)^4$ and the point $A(1, 1)$ on that curve. The tangent drawn at $A$ meets the $x$-axis at $B$, while the normal drawn at $A$ meets the $y$-axis at $C$.
(i)[6]

Find the coordinates of $B$ and $C$ from the diagram.

(ii)[2]

Determine the distance $AC$, and give your answer in the form $\dfrac{\sqrt{a}}{b}$, where $a$ and $b$ are integers.

(iii)[4]

Determine the area of the shaded region.

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