यदि \(A=\{1,2,{3,4}\}\), तो (\mathcal{P}(A)) में कौन सा तत्व अवश्य होगा?

If \(A=\{1,2,{3,4}\}\), which element must be in (\mathcal{P}(A))?

Explanation opens after your attempt
Correct Answer

A. ({{3,4}})

Step 1

Concept

({3,4}) is one element of (A), so its singleton subset ({{3,4}}) is in the power set.

Step 2

Why this answer is correct

The correct answer is A. ({{3,4}}). ({3,4}) is one element of (A), so its singleton subset ({{3,4}}) is in the power set.

Step 3

Exam Tip

({3,4}) (A) का एक तत्व है, इसलिए उसका एकल उपसमुच्चय ({{3,4}}) घात समुच्चय में होगा।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,{3,4}\}\), तो (\mathcal{P}(A)) में कौन सा तत्व अवश्य होगा? / If \(A=\{1,2,{3,4}\}\), which element must be in (\mathcal{P}(A))?

Correct Answer: A. ({{3,4}}). Explanation: ({3,4}) (A) का एक तत्व है, इसलिए उसका एकल उपसमुच्चय ({{3,4}}) घात समुच्चय में होगा। / ({3,4}) is one element of (A), so its singleton subset ({{3,4}}) is in the power set.

Which concept should I revise for this Mathematics MCQ?

({3,4}) is one element of (A), so its singleton subset ({{3,4}}) is in the power set.

What exam hint can help solve this Mathematics question?

({3,4}) (A) का एक तत्व है, इसलिए उसका एकल उपसमुच्चय ({{3,4}}) घात समुच्चय में होगा।