Finite Math Examples

${}_{6}P_{10}$

Step 1

Evaluate ${}_{6}P_{10}$ using the formula ${}_{n}P_{r} = \frac{n!}{(n - r)!}$ .

$\frac{6!}{(6 - 10)!}$

Step 2

Since $r > n$ , it is impossible to select $10$ items from a total of only $6$ possible items.

$0$