Question

If
A
and
B
are two sets,
U
is the universal set,
ϕ
is an empty set and
(
(
A
∩
U
)
∪
(
B
∪
ϕ
)
)
= (
(
A
∩
ϕ
)
∪
A
)
∩
(
B
∩
B
)
then which of the following is(are) true?

Answer 1

Answer:

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