Find $P(A\\cup B')$ and $P(A'\\cup B)$ when $A,B$ are independent

I have solved an exercise but i have no idea if i am right or wrong. Find P(A ∪B′) P (A ∪ B ′) and P(A′ ∪ B) P (A ′ ∪ B) when A, B A, B are independent and P(A) = 0.2, P(B) = 0.8. P (A) = 0.2, P (B) = 0.8. First I use