(Q16).If A = {1, 2, 3, 4}; B = {1, 2, 3, 4, 5, 6, 7, 8}, then find A ∪ B, A ∩ B. What do you notice about the result?

Given sets are

A = {1, 2, 3, 4} and B = {1, 2, 3, 4, 5, 6, 7, 8}

A ∪ B = {1, 2, 3, 4} ∪ {1, 2, 3, 4, 5, 6, 7, 8} = {, , , , , , , } =

A ∩ B = {1, 2, 3, 4} ∩ {1, 2, 3, 4, 5, 6, 7, 8} = {, , , } =

If A ⊂ B, then A ∪ B = and A ∩ B =