Question

Use formula nCr to evaluate the given expression 14C13

Answer 1

14

Explanation:

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

thus,

14C13 = 14! / 13! (14 - 13)!

= 87,178,291,200 / 6,227,020,800 (1!)

= 87,178,291,200 / 6,227,020,800 (1)

= 87,178,291,200 / 6,227,020,800

= 14