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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Let A = { a, b}, B = {a, b, c}. Is A ⊂ B ? What is A ∪ B ?
Solution:
We say that A ⊂ B (which is read as "A is a subset of B") if every element of A is present in B.
Here,
A = {a, b} and B = {a, b, c}
We see that every element of A is present in B.
Hence, A ⊂ B.
A υ B is read as the "union of A and B" and it is the set formed with all elements of both A and B.
Thus,
A υ B = {a, b, c}
NCERT Solutions Class 11 Maths Chapter 1 Exercise 1.4 Question 2
Let A = { a, b }, B = {a, b, c}. Is A ⊂ B ? What is A ∪ B ?
Summary:
It is given that A = {a, b}, B = {a, b, c}. We have found that A ⊂ B and A υ B = {a, b, c}.
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