Question

Use nPr formula 11P0=

Answer 1

we know that

the formula is equal to

P(n,r) = n! / (n-r)!

we have that

nPr = n!/(n-r)!

we have

11P0

so

n=11

r=0

= 11!/(11-0)!

=11!/11!

=1

answer is 1