Question

prove the following question.

Answer 1

Let.. A={1,2,3,4.5.6}
B={2,4,6,7,9}
C={5,4,6,7}
______________
B-C. Means the elements of B which r not in C
B-C={2,9}
AΠ(B-C)={2}.
_____________
AΠB={2,4,6}
AΠC={5,4,6}
AΠB-AΠC. Means the elements of AΠB which r not in AΠC.
AΠB-AΠC={2}