SOLUTION: ____is the number of combinations if r is equal to zero

Algebra ->  Permutations -> SOLUTION: ____is the number of combinations if r is equal to zero      Log On


   

Question 1173604: ____is the number of combinations if r is equal to zero
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
highlight%281%29

nCr = n!/((n-r)!r!) and if r=0 this becomes n!/((n!)0!) = n!/n! = 1