Question

if a=(a union b) then what is (a intersection b)

Answer 1

Step-by-step explanation:

If B is the subset of A then

1)AUB =B

2)AnB=B

ex:A={1,2,3} and B={1,2,3,4,5}

AUB={1,2,3}U{1,2,3,4,5}={1,2,3,4,5}=B

AnB={1,2,3}n{1,2,3,4,5}={1,2,3}=A