Q7 of 78 Page 13

Find the rate of change of the volume of a ball with respect to its radius r. How fast is the volume changing with respect to the radius when the radius is 2 cm?

Volume of a Ball = Volume of Sphere =


Where r = radius of the ball.


We need to find , where V = Volume of Ball and r = radius of the ball.



At r = 2 cm,




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