Oil is poured onto a flat surface and a circular patch is formed. The radius of the
Question:
Oil is poured onto a flat surface and a circular patch is formed.
The radius of the patch increases at a rate of 2√r cms−1.
Find the rate at which the area is increasing when the circumference is 8πcm.
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Lets first use the formula for the circumference of a circle to find the radius when the ci...View the full answer
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
Question Posted:
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