A stone is dropped into a quiet lake and waves move in circles at | Filo
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Class 12

Math

Calculus

Application of Derivatives

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A stone is dropped into a quiet lake and waves move in circles at a speed of 4cm per second. At the instant, when the radius of the circular wave is 10 cm, how fast is the enclosed area increasing?

Solution: Solution: given that, cm/s
cm




/s
/sec
answer
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