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Popular Calculus >

derivative of-9/(sqrt(x))

Solution

\frac{d}{d x} (- \frac{9}{x})

Solution

\frac{9}{2 x ^{\frac{3}{2}}}

Solution steps

\frac{d}{d x} (- \frac{9}{x})

Take the constant out:

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

= - 9 \frac{d}{d x} (\frac{1}{x})

Apply exponent rule:

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

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

Apply the Power Rule:

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

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

Simplify

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

= \frac{9}{2 x ^{\frac{3}{2}}}

Graph

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Frequently Asked Questions (FAQ)

What is the derivative of-9/(sqrt(x)) ?
The derivative of-9/(sqrt(x)) is 9/(2x^{3/2)}
What is the first derivative of-9/(sqrt(x)) ?
The first derivative of-9/(sqrt(x)) is 9/(2x^{3/2)}