Finite Math Examples

$\frac{n!}{n - 2!}$

Step 1

Expand $2!$ to $2 \cdot 1$ .

$\frac{n!}{n - (2 \cdot 1)}$

Step 2

Multiply $2$ by $1$ .

$\frac{n!}{n - 1 \cdot 2}$

Step 3

Multiply $- 1$ by $2$ .

$\frac{n!}{n - 2}$

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