What is derivative of f(x)=2pir^2+(1000)/r ?

The answer to derivative of f(x)=2pir^2+(1000)/r is (dr)/(dx)=0

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derivative of f(x)=2pir^2+(1000)/r

derivative of

f (x) = 2 π r^{2} + \frac{1000}{r}

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

Solution steps

f (x) = 2 π r^{2} + \frac{1000}{r}

Treat

r

r (x)

Differentiate both sides:

0 = 4 π r \frac{d r}{d x} - \frac{1000 \frac{d r}{d x}}{r ^{2}}

Isolate

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

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

What is derivative of f(x)=2pir^2+(1000)/r ?
The answer to derivative of f(x)=2pir^2+(1000)/r is (dr)/(dx)=0