Let A and B be sets. For each statement below, please write down the most general statements you can make about A and B. Make sure you justify your answer.
a. A ∪ B = A?
b. A ∩ B = A?
c. A ∪ B = A ∩ B?
d. A − B = A?
e. A − B = B − A?
Please Correct me,
a.B= $\varnothing$ or B$\subseteq$ A
b. B= U
c. A=B
d. A ∩ B = $\varnothing$
e. A=B