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Area of the circle =πr2
Step 1:Find the rate of change of the area with respect to time t.
dAdx= 2πr(derivative of xn= nxn-1)
Step 2:Put r = 6 cm.
dAdx= 2¶πr=2π(6)=12¶
Thanks and Regards
Shaik Aasif
askIITians facultyπdAdx
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