Question

1. If A = {1,2,3,4}; B = {3,4,5,6} then find n((A ∪ B) × (A ∩ B) × (A ∆ B))​

Answer 1

Answer:

(A&B 6 U J K )) × J = 76 ×J ×B = AB: JK U 6

Answer 2

Step-by-step explanation:

n(A U B)=n(A)+n(B)-n(A ∩ B)

n(A)={1,2,3,4}

n(B)={3,4,5,6}

n(A ∩ B}={3,4}

=n(A U B)={1,2,3,4}+{3,4,5,6}-{3,4}

={1,2,5,6}

(A ∩ B)={3,4}

(A ∆ B)=(A-B) U (B-A)

={1,2} U {5,6}

={1,2,5,6}