Set of Sets

Q.

What is a set?

Q.

Number of elements in each of universal set, set A and set B are represented as n(U), n(A), n(B) respectively. The number of elements that are not in set A and not in set B is given by

1. n(U) - n(A ∩ B)

2. n(U) - n(A U B)

3. n(A^I U B^I)

4. n(A ∩ B)^I

Q. {{0}, {5, 6, 7}, {9, 1}} is a Set of sets.

1. True
2. False

Q. A Set of sets can contain only null set and '0' as its elements.

1. True
2. False