Mathematics (AS & A Level) · May / June 2019 · Paper 31 · Question 7
9709
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The question as text
x y O 4 a The diagram shows the curves y = 4 cos 1 2x and y = 1 4 −x, for 0 ≤x < 4. When x = a, the tangents to the curves are perpendicular. / 1
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7(i)[4]
7(ii)[2]
7(iii)[3]
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