- #1
BMY61
- 3
- 0
Here is the problem i am having trouble:
Expressing the binomial coefficients in terms of factorials and simplifying algebraically show that
(n over r) = (n-2+1)/r (n over r-1)
i got that equals ((n-r+1)/r) ((n!)/((r-1)!(n-(r-1))!)) but i am trying to get that to equal n!/r!(n-r)! which would bring me back to (n over r)
i am just getting confused on what to all do in between.
hope i did no confuse anyone
Expressing the binomial coefficients in terms of factorials and simplifying algebraically show that
(n over r) = (n-2+1)/r (n over r-1)
i got that equals ((n-r+1)/r) ((n!)/((r-1)!(n-(r-1))!)) but i am trying to get that to equal n!/r!(n-r)! which would bring me back to (n over r)
i am just getting confused on what to all do in between.
hope i did no confuse anyone