यदि \(A=\varnothing\), तो (A) के उपसमुच्चयों की संख्या कितनी है?
If \(A=\varnothing\), how many subsets does (A) have?
Explanation opens after your attempt
Correct Answer
B. 1
Concept
The empty set has exactly one subset, the empty set itself. Remember \(2^0=1\).
Why this answer is correct
The correct answer is B. 1. The empty set has exactly one subset, the empty set itself. Remember \(2^0=1\).
Exam Tip
रिक्त समुच्चय का एक ही उपसमुच्चय है, वह स्वयं रिक्त समुच्चय है। \(2^0=1\) याद रखें।
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