If \( A \) and \( B \) are finite sets and \( A \subset B \), then

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Question: Answered & Verified by Expert

If \( A \) and \( B \) are finite sets and \( A \subset B \), then

MathematicsLinear ProgrammingKCETKCET 2017

Options:

A \( n(A \cup B)=n(A) \)
B \( n(A \cap B)=n(B) \)
C \( n(A \cup B)=n(B) \)
D \( n(A \cap B)=\varnothing \)

Solution:

2084 Upvotes Verified Answer

The correct answer is: \( n(A \cup B)=n(B) \)

Given that, \( A \) is the subset of \( B \), that is,

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

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