Question

Evaluate C(5, 0).  Combinations

Answer 1

The general equation for the combination is as shown below,
                                      
                 C(n,r) = n!/(r!(n-r)!)

Note that the symbol "!" means factorial. 

In our example, n = 5 and r = 0. Substituting the known values,
                   C(5,0) = 5!/(0!(5-0)!) = 1

The answer to this item is 1.