Question

If A = {x, y, z} then the number of non- empty subsets of A is

(1) 8 (2) 5 (3) 6 (4) 7​

Answer 1

Answer:

Subset of A={x,y,z} is

{X}, {y}, {z}, {x,y}, {y,z}, {x,z}, {x,y,z} are non-empty subset of set A =7

It is also obtained by 2^n-1 =2³-1=8–1= 7 ans.