यदि \(A=\emptyset\) है, तो (A) के उपसमुच्चयों की संख्या क्या होगी?
If \(A=\emptyset\), how many subsets does (A) have?
Explanation opens after your attempt
Correct Answer
B. (1)
Concept
The empty set has only one subset, itself. The formula gives \(2^0=1\).
Why this answer is correct
The correct answer is B. (1). The empty set has only one subset, itself. The formula gives \(2^0=1\).
Exam Tip
रिक्त समुच्चय का केवल एक उपसमुच्चय वही स्वयं है। सूत्र \(2^0=1\) देता है।
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