Hard Mathematics Sets Class 11 Level 9

यदि \(A=\{1,2,{1,2}\}\), तो निम्न में से कौन सा कथन सही है?

If \(A=\{1,2,{1,2}\}\), which of the following is correct?

Explanation opens after your attempt
Correct Answer

A. \({1,2}\subset A\) और \({1,2}\in A\) दोनों सत्य हैंBoth \({1,2}\subset A\) and \({1,2}\in A\) are true

Step 1

Concept

Since (1) and (2) are in (A), \({1,2}\subset A\), and ({1,2}) is also an element. This is a good mixed notation example.

Step 2

Why this answer is correct

The correct answer is A. \({1,2}\subset A\) और \({1,2}\in A\) दोनों सत्य हैं / Both \({1,2}\subset A\) and \({1,2}\in A\) are true. Since (1) and (2) are in (A), \({1,2}\subset A\), and ({1,2}) is also an element. This is a good mixed notation example.

Step 3

Exam Tip

(1) और (2) (A) में हैं, इसलिए \({1,2}\subset A\), और ({1,2}) भी एक अवयव है। यह मिश्रित notation का अच्छा उदाहरण है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,{1,2}\}\), तो निम्न में से कौन सा कथन सही है? / If \(A=\{1,2,{1,2}\}\), which of the following is correct?

Correct Answer: A. \({1,2}\subset A\) और \({1,2}\in A\) दोनों सत्य हैं / Both \({1,2}\subset A\) and \({1,2}\in A\) are true. Explanation: (1) और (2) (A) में हैं, इसलिए \({1,2}\subset A\), और ({1,2}) भी एक अवयव है। यह मिश्रित notation का अच्छा उदाहरण है। / Since (1) and (2) are in (A), \({1,2}\subset A\), and ({1,2}) is also an element. This is a good mixed notation example.

Which concept should I revise for this Mathematics MCQ?

Since (1) and (2) are in (A), \({1,2}\subset A\), and ({1,2}) is also an element. This is a good mixed notation example.

What exam hint can help solve this Mathematics question?

(1) और (2) (A) में हैं, इसलिए \({1,2}\subset A\), और ({1,2}) भी एक अवयव है। यह मिश्रित notation का अच्छा उदाहरण है।

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