Find the Derivative – d/dr 1/r

$\frac{1}{r}$

Rewrite $\frac{1}{r}$ as $r^{- 1}$ .

$\frac{d}{d r} [r^{- 1}]$

Differentiate using the Power Rule which states that $\frac{d}{d r} [r^{n}]$ is $n r^{n - 1}$ where $n = - 1$ .

$- r^{- 2}$

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$- \frac{1}{r^{2}}$

Find the Derivative – d/dr 1/r

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