यदि \(A=\{a,{b},c\}\) है, तो निम्न में से कौन सा (\mathcal{P}(A)) का तत्व नहीं है?
If \(A=\{a,{b},c\}\), which of the following is not an element of (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
D. ({a,b})
Concept
(b) itself is not an element of (A); ({b}) is an element. So ({a,b}) is not a subset of (A).
Why this answer is correct
The correct answer is D. ({a,b}). (b) itself is not an element of (A); ({b}) is an element. So ({a,b}) is not a subset of (A).
Exam Tip
(b) स्वयं (A) का तत्व नहीं है, बल्कि ({b}) तत्व है। इसलिए ({a,b}), (A) का उपसमुच्चय नहीं है।
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