Question

Evaluate the expression. P(9, 3) · P(5, 4)

Answer 1

`P(9,3) *P(5,4)`

And if we use the permutation formula given by:

`nPx = (n!)/((n-x)!)`

And replacing we got:

`(9!)/(6!) (5!)/(4!)= 504*5 = 2520`

Explanation:

For this problem we want to find the following expressionÑ

`P(9,3) *P(5,4)`

And if we use the permutation formula given by:

`nPx = (n!)/((n-x)!)`

And replacing we got:

`(9!)/(6!) (5!)/(4!)= 504*5 = 2520`