Calculus Examples

$y = x^{\frac{1}{7}}$

Step 1

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = \frac{1}{7}$ .

$\frac{1}{7} x^{\frac{1}{7} - 1}$

Step 2

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{7}{7}$ .

$\frac{1}{7} x^{\frac{1}{7} - 1 \cdot \frac{7}{7}}$

Step 3

Combine $- 1$ and $\frac{7}{7}$ .

$\frac{1}{7} x^{\frac{1}{7} + \frac{- 1 \cdot 7}{7}}$

Step 4

Combine the numerators over the common denominator.

$\frac{1}{7} x^{\frac{1 - 1 \cdot 7}{7}}$

Step 5

Simplify the numerator.

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Step 5.1

Multiply $- 1$ by $7$ .

$\frac{1}{7} x^{\frac{1 - 7}{7}}$

Step 5.2

Subtract $7$ from $1$ .

$\frac{1}{7} x^{\frac{- 6}{7}}$

Step 6

Move the negative in front of the fraction.

$\frac{1}{7} x^{- \frac{6}{7}}$

Step 7

Simplify.

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Step 7.1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{7} \cdot \frac{1}{x^{\frac{6}{7}}}$

Step 7.2

Multiply $\frac{1}{7}$ by $\frac{1}{x^{\frac{6}{7}}}$ .

$\frac{1}{7 x^{\frac{6}{7}}}$