Question

=
0
2
undefined

Answer 1

\[0!=1\]by definition

Answer 2

i dont get it

Answer 3

See.. we define a factorial (that sign -> !) as follows:

n! = n * (n-1) * (n-2) * ... * 3 * 2 * 1

Now, there are some properties for factorials one of them being -> 0! = 1

Answer 4

Now, let's start by evaluating 2!, we know that for factorial we just multiply all numbers less than or equal to the original number till we reach one...

That means...

2! = 2 * 1

Answer 5

Countrygirl: Here, as elsewhere in math, you'll need to learn basic rules and definitions, such as the fact that 0! = 1, which here leads to the conclusion that

2!
--
0!

is defined (not undefined, as you might have expected from a zero in the denominator). If y ou "don't get it," could you possibly phrase and ask some questions that the rest of us could perhaps answer for you?

Answer 6

2! = ? (see Vish' comment, above)

0! = 1 (see various comments above).

Then,

2!
--- = what?
0!