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Popular >

derivative of 9/(5x^2)

Solution

\frac{d}{d x} (\frac{9}{5 x ^{2}})

Solution

- \frac{18}{5 x ^{3}}

Solution steps

\frac{d}{d x} (\frac{9}{5 x ^{2}})

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= \frac{9}{5} \frac{d}{d x} (\frac{1}{x ^{2}})

Apply exponent rule:

\frac{1}{a} = a^{- 1}

= \frac{9}{5} \frac{d}{d x} (x^{- 2})

Apply the Power Rule:

\frac{d}{d x} (x^{a}) = a \cdot x^{a - 1}

= \frac{9}{5} (- 2 x^{- 2 - 1})

Simplify

\frac{9}{5} (- 2 x^{- 2 - 1}) : - \frac{18}{5 x ^{3}}

= - \frac{18}{5 x ^{3}}

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Frequently Asked Questions (FAQ)

What is the derivative of 9/(5x^2) ?
The derivative of 9/(5x^2) is -(18)/(5x^3)
What is the first derivative of 9/(5x^2) ?
The first derivative of 9/(5x^2) is -(18)/(5x^3)