Question

let A={1,2,3,4,5,6,7,8,9,10}. then the number of subset of A containing two or three element is

Answer 1

math]n(S)=10[/math] Number of subsets of size 2 = Number of ways to choose 2 ... 7 Answers .... we have to select 2 or 3 elements from set of 10 numbers. ... (10*9*8)/(3*2 ...