Mathematics (AS & A Level) · Oct / Nov 2017 · Paper 21 · Question 7
9709
As printed in the paper
The question as text
x y O Q P The diagram shows the curve y = x2 + 3x + 1 + 5 cos 1 2x. The curve crosses the y-axis at the point P and the gradient of the curve at P is m. The point Q on the curve has x-coordinate q and the gradient of the curve at Q is −m.
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Show the answer and mark scheme
7(i)[4]
7(ii)[2]
7(iii)[3]
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