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Popular >

derivative of 1/(sqrt(x-9))

Solution

derivative of

\frac{1}{x - 9}

Solution

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

Solution steps

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

Apply exponent rule:

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

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

Apply the chain rule:

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

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

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

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

Simplify

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

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Frequently Asked Questions (FAQ)

What is the derivative of 1/(sqrt(x-9)) ?
The derivative of 1/(sqrt(x-9)) is -1/(2(x-9)^{3/2)}
What is the first derivative of 1/(sqrt(x-9)) ?
The first derivative of 1/(sqrt(x-9)) is -1/(2(x-9)^{3/2)}