Calculus Examples

$\int x^{5} + \sqrt[5]{x^{3}} + \frac{1}{x^{3}} d x$

Step 1

Split the single integral into multiple integrals.

$\int x^{5} d x + \int \sqrt[5]{x^{3}} d x + \int \frac{1}{x^{3}} d x$

Step 2

By the Power Rule, the integral of $x^{5}$ with respect to $x$ is $\frac{1}{6} x^{6}$ .

$\frac{1}{6} x^{6} + C + \int \sqrt[5]{x^{3}} d x + \int \frac{1}{x^{3}} d x$

Step 3

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[5]{x^{3}}$ as $x^{\frac{3}{5}}$ .

$\frac{1}{6} x^{6} + C + \int x^{\frac{3}{5}} d x + \int \frac{1}{x^{3}} d x$

Step 4

By the Power Rule, the integral of $x^{\frac{3}{5}}$ with respect to $x$ is $\frac{5}{8} x^{\frac{8}{5}}$ .

$\frac{1}{6} x^{6} + C + \frac{5}{8} x^{\frac{8}{5}} + C + \int \frac{1}{x^{3}} d x$

Step 5

Apply basic rules of exponents.

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Step 5.1

Move $x^{3}$ out of the denominator by raising it to the $- 1$ power.

$\frac{1}{6} x^{6} + C + \frac{5}{8} x^{\frac{8}{5}} + C + \int {(x^{3})}^{- 1} d x$

Step 5.2

Multiply the exponents in ${(x^{3})}^{- 1}$ .

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Step 5.2.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{1}{6} x^{6} + C + \frac{5}{8} x^{\frac{8}{5}} + C + \int x^{3 \cdot - 1} d x$

Step 5.2.2

Multiply $3$ by $- 1$ .

$\frac{1}{6} x^{6} + C + \frac{5}{8} x^{\frac{8}{5}} + C + \int x^{- 3} d x$

Step 6

By the Power Rule, the integral of $x^{- 3}$ with respect to $x$ is $- \frac{1}{2} x^{- 2}$ .

$\frac{1}{6} x^{6} + C + \frac{5}{8} x^{\frac{8}{5}} + C - \frac{1}{2} x^{- 2} + C$

Step 7

Simplify.

$\frac{1}{6} x^{6} + \frac{5}{8} x^{\frac{8}{5}} - \frac{1}{2} x^{- 2} + C$