यदि \(A=\varnothing\) है तो (A) के उपसमुच्चयों की संख्या क्या है?
If \(A=\varnothing\) then what is the number of subsets of (A)?
Explanation opens after your attempt
Correct Answer
B. (1)
Concept
The empty set has exactly one subset which is \(\varnothing\). Remember the formula \(2^0=1\).
Why this answer is correct
The correct answer is B. (1). The empty set has exactly one subset which is \(\varnothing\). Remember the formula \(2^0=1\).
Exam Tip
रिक्त समुच्चय का केवल एक उपसमुच्चय \(\varnothing\) ही होता है। सूत्र \(2^0=1\) याद रखें।
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