Calculus Examples

$\int \ln (x^{6}) d x$

Step 1

Rewrite $\ln (x^{6})$ as $6 \ln (x)$ .

$\int 6 \ln (x) d x$

Step 2

Since $6$ is constant with respect to $x$ , move $6$ out of the integral.

$6 \int \ln (x) d x$

Step 3

Integrate by parts using the formula $\int u d v = u v - \int v d u$ , where $u = \ln (x)$ and $d v = 1$ .

$6 (\ln (x) x - \int x \frac{1}{x} d x)$

Step 4

Simplify.

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Step 4.1

Combine $x$ and $\frac{1}{x}$ .

$6 (\ln (x) x - \int \frac{x}{x} d x)$

Step 4.2

Cancel the common factor of $x$ .

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Step 4.2.1

Cancel the common factor.

$6 (\ln (x) x - \int \frac{x}{x} d x)$

Step 4.2.2

Rewrite the expression.

$6 (\ln (x) x - \int d x)$

Step 5

Apply the constant rule.

$6 (\ln (x) x - (x + C))$

Step 6

Simplify.

$6 (\ln (x) x - x) + C$