What is derivative of f(x)=4pir^2 ?

The answer to derivative of f(x)=4pir^2 is (dr)/(dx)=0

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derivative of f(x)=4pir^2

derivative of

f (x) = 4 π r^{2}

\frac{d r}{d x} = 0

Solution steps

f (x) = 4 π r^{2}

Treat

r

r (x)

Differentiate both sides:

0 = 8 π r \frac{d r}{d x}

Isolate

\frac{d r}{d x} : \frac{d r}{d x} = 0

\frac{d r}{d x} = 0

\frac{\partial}{\partial z} (\frac{- z}{y ^{2} + z ^{2}})

\int_{0}^{1} x^{4} e^{2 x} d x

\int \frac{1}{( x ^{2} + 6 ) ^{\frac{3}{2}}} d x

n = 0 \sum \infty 2 x^{n}

\frac{x}{x ^{2} + 36}

What is derivative of f(x)=4pir^2 ?
The answer to derivative of f(x)=4pir^2 is (dr)/(dx)=0