Finite Math Examples

${}_{2}P_{52}$

Step 1

Evaluate ${}_{2}P_{52}$ using the formula ${}_{n}P_{r} = \frac{n!}{(n - r)!}$ .

$\frac{2!}{(2 - 52)!}$

Step 2

Since $r > n$ , it is impossible to select $52$ items from a total of only $2$ possible items.

$0$