Chapter 1: Sets

Exercise

Question

Question: 3

7 / 58

If A and B are two sets such that A ⊂ B, then what is A ∪ B?

Answer

1
Since A is a subset of B, determine whether adding the elements of A to B introduces any new elements.
Answer: A $∪$ B = B
Reason: Every element of A is already contained in B. Therefore, taking the union of A and B does not add any new elements beyond those in B. Hence, A $∪$ B = B
Sponsored320 x 50