कौन सा विकल्प \(x\in (-15,-7)\) को असमता रूप में सही लिखता है?

Which option correctly writes \(x\in (-15,-7)\) in inequality form?

Explanation opens after your attempt
Correct Answer

B. (-15<x<-7)

Step 1

Concept

Both sides have parentheses so both endpoints are excluded. Thus (-15<x<-7) is correct.

Step 2

Why this answer is correct

The correct answer is B. (-15<x<-7). Both sides have parentheses so both endpoints are excluded. Thus (-15<x<-7) is correct.

Step 3

Exam Tip

दोनों ओर गोल कोष्ठक हैं इसलिए दोनों सीमाएँ शामिल नहीं हैं। अतः (-15<x<-7) सही है।

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Mathematics Answer, Explanation and Revision Hints

कौन सा विकल्प \(x\in (-15,-7)\) को असमता रूप में सही लिखता है? / Which option correctly writes \(x\in (-15,-7)\) in inequality form?

Correct Answer: B. (-15<x<-7). Explanation: दोनों ओर गोल कोष्ठक हैं इसलिए दोनों सीमाएँ शामिल नहीं हैं। अतः (-15<x<-7) सही है। / Both sides have parentheses so both endpoints are excluded. Thus (-15<x<-7) is correct.

Which concept should I revise for this Mathematics MCQ?

Both sides have parentheses so both endpoints are excluded. Thus (-15<x<-7) is correct.

What exam hint can help solve this Mathematics question?

दोनों ओर गोल कोष्ठक हैं इसलिए दोनों सीमाएँ शामिल नहीं हैं। अतः (-15<x<-7) सही है।