Answer to Question #280121 in Discrete Mathematics for A lawal

Question

Let={2,4,7},B={2,5,4} find the set A∆B

Answer 1

Solution:

A △ B = (A – B) ∪ (B – A)

Given A={2,4,7},B={2,5,4}

A - B = {7}

B - A = {5}

Now, A △ B = (A – B) ∪ (B – A)

= {7} ∪ {5}

= {5,7}