Question

(iv) (AUB) (A U B') = A​

Answer 1

$\huge\bold\red{ANSWER..}$

By distributive property,

A U ( B intersect B') = (A U B) intersect ( A U B')

BUT.....

B intersect B' is the empty set.

So

(A U B) intersect ( A U B') = A U (B intersect B') = A U empty set = A