समुच्चय \({x\in\mathbb{R}: -1<x<3}\) का सही अंतराल रूप कौन सा है?

Which interval form represents \({x\in\mathbb{R}: -1<x<3}\)?

Explanation opens after your attempt
Correct Answer

A. ((-1,3))

Step 1

Concept

Both inequalities are strict, so both endpoints use open parentheses. The values (-1) and (3) are not included.

Step 2

Why this answer is correct

The correct answer is A. ((-1,3)). Both inequalities are strict, so both endpoints use open parentheses. The values (-1) and (3) are not included.

Step 3

Exam Tip

दोनों असमानताएं कठोर हैं, इसलिए दोनों सिरों पर खुला कोष्ठक लगेगा। (-1) और (3) शामिल नहीं हैं।

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Mathematics Answer, Explanation and Revision Hints

समुच्चय \({x\in\mathbb{R}: -1<x<3}\) का सही अंतराल रूप कौन सा है? / Which interval form represents \({x\in\mathbb{R}: -1<x<3}\)?

Correct Answer: A. ((-1,3)). Explanation: दोनों असमानताएं कठोर हैं, इसलिए दोनों सिरों पर खुला कोष्ठक लगेगा। (-1) और (3) शामिल नहीं हैं। / Both inequalities are strict, so both endpoints use open parentheses. The values (-1) and (3) are not included.

Which concept should I revise for this Mathematics MCQ?

Both inequalities are strict, so both endpoints use open parentheses. The values (-1) and (3) are not included.

What exam hint can help solve this Mathematics question?

दोनों असमानताएं कठोर हैं, इसलिए दोनों सिरों पर खुला कोष्ठक लगेगा। (-1) और (3) शामिल नहीं हैं।