NCERT Class XI Mathematics - Sets - Solutions

Question : 32

Total: 73

Let A = {a, b}, B = {a, b, c}. Is A ⊂ B ? What is A ∪ B?

Solution:

Here A = {a, b} and B = {a, b, c}. All elements of set A are present in set B.
∴ A ⊂ B. Now, A ∪ B = {a, b, c} = B.

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