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OpenStudy (anonymous):
the area of a circle is increasing at rate of 10 pi cm. find the rate of increase of the radius when the radius is 2.5cm. pls show me the complete calculation! i am lost and i have a test tomorrow
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hartnn (hartnn):
do u have answer or options,i am getting rate as 2...if i am correct,i'll explain...
OpenStudy (anonymous):
yes the answer is 2
hartnn (hartnn):
ok,this involves differentiation or taking derivative.....u familiar with this?
OpenStudy (anonymous):
yes i am
hartnn (hartnn):
|dw:1344754980682:dw|
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