Expert Mathematics Sets Class 11 Level 7

यदि \(A=\{1,2,{1}\}\) है तो कौन सा कथन सत्य है?

If \(A=\{1,2,{1}\}\) then which statement is true?

Explanation opens after your attempt
Correct Answer

A. \({1}\in A\) और \({1}\subset A\) दोनों सत्य हैंBoth \({1}\in A\) and \({1}\subset A\) are true

Step 1

Concept

({1}) is present as an element and its element (1) is also in (A), so both statements are true. In exams the same object can be both an element and a subset.

Step 2

Why this answer is correct

The correct answer is A. \({1}\in A\) और \({1}\subset A\) दोनों सत्य हैं / Both \({1}\in A\) and \({1}\subset A\) are true. ({1}) is present as an element and its element (1) is also in (A), so both statements are true. In exams the same object can be both an element and a subset.

Step 3

Exam Tip

({1}) तत्व के रूप में भी है और उसका तत्व (1) भी (A) में है इसलिए दोनों कथन सत्य हैं। परीक्षा में एक ही वस्तु तत्व और उपसमुच्चय दोनों हो सकती है।

FAQs

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \({1}\in A\) और \({1}\subset A\) दोनों सत्य हैं / Both \({1}\in A\) and \({1}\subset A\) are true.

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