Precalculus Examples

$\frac{{(- 1)}^{n} \cdot n}{n!}$

Step 1

Reorder factors in $\frac{{(- 1)}^{n} n}{n!}$ .

$\frac{n {(- 1)}^{n}}{n!}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$