Question

$\mathbb{ \ \ Q\ U\ E\ S\ T\ I\ O\ N\: \: }$

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

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Answer 1

Answer:

This new set contains all the elements of set A and all the elements of set B with no repetition of elements and is named as union of set A and B. So, as all the elements of A are there in B, we will have, A∪B=B.

Answer 2

$\frak \blue{\fcolorbox{blue}{white} {\ \ ANSWER\: \: }}$

If A and B are two sets such that A ⊂ B, then A ∪ B = B.