A calculus problem by Aryan Mehra

Calculus Level pending

The double differenciation of the area of the circle gives what value ( irrespective of the radius )


The answer is 6.28.

Aryan Mehra by Aryan Mehra , 22, India

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1 solution

Alex Li
May 20, 2015

The formula for the area of a triangle is f ( r ) = π r 2 f(r)=\pi r^2 . Thus, f ′ ( r ) = 2 π r f'(r)=2\pi r , and f ′ ′ ( r ) = 2 π f''(r)=\boxed{2\pi} .

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