यदि \(A=\{1,2\}\) है तो (1) और ({1}) में कौन सा (\mathcal{P}(A)) का तत्व है?
If \(A=\{1,2\}\) then between (1) and ({1}), which is an element of (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
B. केवल ({1})only ({1})
Concept
(\mathcal{P}(A)) contains subsets, not direct elements. ({1}) is a subset, so it is correct.
Why this answer is correct
The correct answer is B. केवल ({1}) / only ({1}). (\mathcal{P}(A)) contains subsets, not direct elements. ({1}) is a subset, so it is correct.
Exam Tip
(\mathcal{P}(A)) में उपसमुच्चय होते हैं, सीधे तत्व नहीं। ({1}) उपसमुच्चय है इसलिए सही है।
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