Question

If A = {x:x is a letter in word BELOW), B = {x:x is a letter in word WOOL) and C = A-B, then the number of subsets of C is​

Answer 1

Step-by-step explanation:

A = (x:x is a letter in the word FOLLOW) = (F,O,L,W)

B = (y:y is a letter in the word WOLF) = (W,O,L,F)

The order in which the elements of a set are listed is not significant.

∴A=B.