Precalculus Examples

$\frac{12!}{10!}$

Step 1

Rewrite $12!$ as $12 \cdot 11 \cdot 10!$ .

$\frac{12 \cdot 11 \cdot 10!}{10!}$

Step 2

Cancel the common factor of $10!$ .

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Step 2.1

Cancel the common factor.

$\frac{12 \cdot 11 \cdot 10!}{10!}$

Step 2.2

Divide $12 \cdot 11$ by $1$ .

$12 \cdot 11$

$12 \cdot 11$

Step 3

Multiply $12$ by $11$ .

$132$

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