Paint is poured onto a flat surface and a circular patch is formed The area of the patch increases at a rate of 5cm 2 s 1 a Find, in terms of , the radius of the patch after 8 seconds b Find, in terms of , the rate of increase of the radius after 8 seconds ...

Paint is poured onto a flat surface and a circular patch is formed. The area of the

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Paint is poured onto a flat surface and a circular patch is formed.
The area of the patch increases at a rate of 5cm²s⁻¹.
a. Find, in terms of π, the radius of the patch after 8 seconds.
b. Find, in terms of π, the rate of increase of the radius after 8 seconds

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a Let the radius of the circular patch at time t be rt The rate of increase of the area is g...View the full answer

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