यदि \(A=\{1,2,{3}\}\) है तो कौन सा (A) का उपसमुच्चय है?

If \(A=\{1,2,{3}\}\) then which is a subset of (A)?

Explanation opens after your attempt
Correct Answer

A. ({1,{3}})

Step 1

Concept

Both (1) and ({3}) are elements of (A). Since (3) itself is not in (A), options using it may be false.

Step 2

Why this answer is correct

The correct answer is A. ({1,{3}}). Both (1) and ({3}) are elements of (A). Since (3) itself is not in (A), options using it may be false.

Step 3

Exam Tip

(1) और ({3}) दोनों (A) के अवयव हैं। (3) स्वयं (A) में नहीं है इसलिए उससे बने विकल्प गलत हो सकते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,{3}\}\) है तो कौन सा (A) का उपसमुच्चय है? / If \(A=\{1,2,{3}\}\) then which is a subset of (A)?

Correct Answer: A. ({1,{3}}). Explanation: (1) और ({3}) दोनों (A) के अवयव हैं। (3) स्वयं (A) में नहीं है इसलिए उससे बने विकल्प गलत हो सकते हैं। / Both (1) and ({3}) are elements of (A). Since (3) itself is not in (A), options using it may be false.

Which concept should I revise for this Mathematics MCQ?

Both (1) and ({3}) are elements of (A). Since (3) itself is not in (A), options using it may be false.

What exam hint can help solve this Mathematics question?

(1) और ({3}) दोनों (A) के अवयव हैं। (3) स्वयं (A) में नहीं है इसलिए उससे बने विकल्प गलत हो सकते हैं।