Question

write down all the subsets of A={a, b}​

Answer 1

Answer:

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

Step-by-step explanation:

there are four subsets...

null set is a sub set of all set..

Answer 2

answer let A - (a)

hence n is 1

so no. of subsets A 2n

2^1 and 2

hope it helps