Question

No 1 ,2 ,3 plis sampean kle dikei carane ok

Answer 1

1. A = {1, 2, 3}
    B = {2, 1, 5}
A ∪ B = {1, 2, 3, 5}
(A ∪ B) - A = {5}

2. H = {2, 4, 5}
    K = {1, 4, 7}
    L = {7, 5, 1}
(H-K) = {1, 2, 5, 7}.
{1, 2, 5, 7} ∩ L = {1, 5, 7}.