What is the integral of (-2)/x ?

The integral of (-2)/x is -2ln|x|+C

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integral of (-2)/x

integral

\frac{- 2}{x}

- 2 ln ∣ x ∣ + C

Solution steps

\int \frac{- 2}{x} d x

Take the constant out:

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

= - 2 \cdot \int \frac{1}{x} d x

Use the common integral:

\int \frac{1}{x} d x = ln (∣ x ∣)

= - 2 ln ∣ x ∣

Add a constant to the solution

= - 2 ln ∣ x ∣ + C

\frac{1}{( x ^{2} + y ^{2} )}

sin (\frac{1}{x})

a^{2} - x^{2}

x^{2} a^{2} - x^{2}

\frac{1}{( 1 + x ^{2} ) ^{\frac{1}{2}}}