NCERT Class 11-Math՚s Exemplar Chapter 1 Sets CBSE Board Problems (For CBSE, ICSE, IAS, NET, NRA 2023)
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Question 19:
For all sets A and B,
Answer:
Given: There are two sets A and B
To prove:
Take L. H. S
Distributive property of set:
= R. H. S
Hence Proved
Question 20:
For all sets A and B,
Answer:
Given: There are two sets A and B
To prove:
Take L. H. S
Distributive property of set:
Hence Proved
Question 21:
For all sets A and B,
Answer:
Given: There are two sets A and B
To prove:
Take L. H. S
Distributive property of set:
Hence Proved
Question 22:
Is an empty set? Justify your answer.
Answer: