KCET · Maths · Linear Programming
If \( A \) and \( B \) are finite sets and \( A \subset B \), then
- A \( n(A \cup B)=n(A) \)
- B \( n(A \cap B)=n(B) \)
- C \( n(A \cup B)=n(B) \)
- D \( n(A \cap B)=\varnothing \)
Answer & Solution
Correct Answer
(C) \( n(A \cup B)=n(B) \)
Step-by-step Solution
Detailed explanation
Given that, \( A \) is the subset of \( B \), that is,

Therefore, \( n(A \cup B)=m(B) \)

Therefore, \( n(A \cup B)=m(B) \)
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