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1 Unit 1: Pure Mathematics A

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Question 176

The area A A\,A cm2 ^2\,2 of a circle of radius r r\,r cm is given by A=πr2A = \pi r^2A=πr2.

Find the rate of change of A A\,A with respect to r r\,r when r=5r = 5r=5.

[2]
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1 Unit 1: Pure Mathematics A Questions

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