Question Detail
Question
Let A = {a,b,c,d}, B = {c,d,e,f}, C = {d,e,f,g}. Find (A ∩ B) ∪ C.
Correct Answer
Option A is the correct answer.
Detailed Explanation
A ∩ B = {c,d}; then union with C = {c,d} ∪ {d,e,f,g} = {c,d,e,f,g}.
Hint
Do intersection first, then union.