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Popular Calculus >

integral of 9x^{-2}

Solution

\int 9 x^{- 2} d x

Solution

- \frac{9}{x} + C

Solution steps

\int 9 x^{- 2} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 9 \cdot \int x^{- 2} d x

Apply the Power Rule

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

Simplify

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

= - \frac{9}{x}

Add a constant to the solution

= - \frac{9}{x} + C

Graph

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Frequently Asked Questions (FAQ)

What is the integral of 9x^{-2} ?
The integral of 9x^{-2} is -9/x+C