evaluate c(4,2) [Solved]

(4*3)/2 = 6.

Recall
COMBINATION FORMULA..

so C(4,2 ) = 4! /( 2! ( 4 2 )! )
= 4!/ (2! * 2 ! )

so C(4,2 ) = 4! /( 2! ( 4 2 )! )
= 4!/ (2! * 2 ! )

4 x 3 x 2 x 1
(cancel the same terms )
2 x 1 x 2 x 1

c(n,k) = n!/(k!*(n-k!))

c(n,k) = n!/(k!*(n-k!))

C( n , r ) = n! / ( r! ( n r )!)

(4*3)/2 = 6.

c(n,k) = n!/(k!*(n-k!))

This post is last updated on hrtanswers.com at Date : 1st of September – 2022