Question

if A={a,b,c,d,e,f,g}, then the number of subsets of A which contains a and e but not f is?​

Answer 1

Answer:

2 Let a set contain 'n' demerits 

then no of proper subsets

of this set are (2n−2)

⇒(26−2)=62 

Answer 2

Answer:

It's right mate which is written above.... xd... I ☺☺☺