Question

if A={a,{a}} then write all the subsets of A​

Answer 1

Answer:

Given A = { a , { a , b } }

n( A ) = 2

Number of subsets = 2^n(A)

= 2²

= 4

Subsets of A = { a } , { { a , b } } ,

{ a , { a , b } } , { }