Question

If A∆B = (A-B) U (B-A) and A = (1, 2, 3, 4), B = {3,5,7} than A∆B is​

Answer 1

Answer:

(A-B) U (B-A)

A-B=(1,2,3,4)-(3,5,7)=(1,2,4)

B-A=(3, 5,7)-(1,2,3,4)=(5,7)

(A-B)U(B-A) =(1, 2,4)U(5,7)=(1,2,4,5,7).

Answer 2

A-B = {1,2}
B-A= {5,7}
AvB = {1,2,5,7}