यदि \(A=\{1,4,7,10\}\) है तो (\mathcal{P}(A)) में शून्य तत्व वाला उपसमुच्चय कितने हैं?
If \(A=\{1,4,7,10\}\), how many zero element subsets are in (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
B. (1)
Concept
The only zero element subset is \(\emptyset\). Therefore the number of such subsets is (1).
Why this answer is correct
The correct answer is B. (1). The only zero element subset is \(\emptyset\). Therefore the number of such subsets is (1).
Exam Tip
शून्य तत्व वाला उपसमुच्चय केवल \(\emptyset\) है। इसलिए ऐसे उपसमुच्चय की संख्या (1) होती है।
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