Question

8^C4

Answer 1

Do yo mean \(C^8_4\)?

Answer 2

No, it's finding combinations

Answer 3

So you are looking for the number of ways of choosing 4 out of 8 different objects?
Yes, this is combinations, we call it 8 choose 4, or 8C4, or \(C^8_4\), or \(\left(\begin{matrix}8 \\ 4\end{matrix}\right)\)

Answer 4

In general, the formula is
nCr=n!/((n-r)!r!)
where ! stands for factorial.

Answer 5

Thanks

Answer 6

You're welcome! :)