A is set of the factors of 28, b is a set of the factors of 17 and C is a set of the odd multiples of 7 less than 50. Which of the following are singleton sets ?
(A) `A nn B` (ii) `C nn B`
(C) `A nn C`

A is a set of all the prime numbers less than 20, B is a set of all the even natural numbers less than 20 and C is a set of all the odd natural numbers. Which of the following is/are true statements ? (A) A nn B is a singleton set. (B) B and C are disjoint sets. (C) A nn C is an infinite set.

With the help of following figure write the following sets. A nn B nn C

A = { set of all multiples of 3 less than 20 } B = { set of the multiples of 2 less than 18 } n((Axx B) nn (B xx A)) is

If A is an empty set and B is a set of vowels, then A nn B is

Let A,B and C be sets such that phi ne A nn B sube C . Then which of the following statements is not true?

If A and B are two sets then A nn(B-C)=(A nn B)-(A nn C)

If A and B are two sets then A nn(B Delta C)=(A nn B)Delta(A nn C)

Let A,B and C be sets such that A nn B sube C and A nn B!=phi. Then which of the following statements is not true?

If A and B are any two sets, prove that : A-B =A nn B^(c) .