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If the semivertical angle of a cone is 4...

If the semivertical angle of a cone is `45^@` then the rate of change of volume of the cone is

A

curved area times the rate of change of `r`

B

base area times the rate of change of `l`

C

base area times the rate of change of `r`

D

none

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1C (RATE OF CHANGE)
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