Question

what does n! mean?

Answer 1

n factorial

Answer 2

how do you evaluate 3!/(3-3)!

Answer 3

n(n-1)(n-2)(n-3)......1

Answer 4

0!=1

Answer 5

3*2*1
------
1

=6

Answer 6

I'm don't thin i really understand lol

Answer 7

ok, what's troubling you?

Answer 8

so 0! always equals 1

Answer 9

maybe what is confusing is
\[0!\] but by definition
\[0!=1\]sort of like you know that
\[b^0=1\]

Answer 10

oh i see

Answer 11

and for example
\[5!=5\times 4\times 3\times 2\]

Answer 12

ok i get it now thanks a lot everyone:)