- #1

- 64

- 0

## Homework Statement

Expressing the binomial coefficients in terms of factorials and simplifying algebraically, show that

(n over r) = (n-r+1)/r (n over r-1);

## Homework Equations

## The Attempt at a Solution

I honestly don't even know how to come about this problem...I really need help in this subject. Even how to start it would be great.