Indicate the formula for the following conditions.

C (n, r) =

I got C (n, r) = (n r.) = n! r! (n-r) ! so far but I'm not sure what to do after this

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

Step-by-step explanation:

The formula for C (n, r), also known as "n choose r" or a combination,

is:

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

where n is the total number of options and r is number you must choose

The number generated is the total number of possible combinations.

The! means factorial. For example, 4! = 4 x 3 x 2 x 1