Finite Math Examples

${}_{6}P_{45}$

Step 1

Evaluate

${}_{6}P_{45}$ using the formula

${}_{n}P_{r} = \frac{n!}{(n - r)!}$ .

$\frac{6!}{(6 - 45)!}$

Step 2

Since

$r > n$ , it is impossible to select

$45$ items from a total of only

$6$ possible items.

$0$

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