Question

Find the symmetric difference between P={2, 3, 5, 7, 11} and Q={1, 3, 5, 11}​

Answer 1

Answer:

Symemetric diffrence:- Let A and B are two sets. The symmetric difference of two sets A and B is the set (A – B) ∪ (B – A) and is denoted by A △ B.

Thus, A △ B = (A – B) ∪ (B – A) = {x : x ∉ A ∩ B}

(i) P = {2, 3, 5, 7, 11} and Q={1, 3, 5, 11}

》Ans:- (P- Q )= {2,7} (Q-P) = { 1,}

》 ( P△Q )= {1,2,7} ans