संख्या रेखा पर (3) और (9) के बीच का भाग छायांकित है तथा (3) पर खुला और (9) पर खुला बिंदु है। सही interval notation कौन-सा है?

The part between (3) and (9) is shaded on the number line with open dots at both (3) and (9). Which interval notation is correct?

Explanation opens after your attempt
Correct Answer

C. ((3,9))

Step 1

Concept

Both open dots show that both endpoints are excluded. In exams write an open-open segment using round brackets.

Step 2

Why this answer is correct

The correct answer is C. ((3,9)). Both open dots show that both endpoints are excluded. In exams write an open-open segment using round brackets.

Step 3

Exam Tip

दोनों खुले बिंदु बताते हैं कि दोनों endpoints शामिल नहीं हैं। परीक्षा में open-open segment को round brackets से लिखें।

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Mathematics Answer, Explanation and Revision Hints

संख्या रेखा पर (3) और (9) के बीच का भाग छायांकित है तथा (3) पर खुला और (9) पर खुला बिंदु है। सही interval notation कौन-सा है? / The part between (3) and (9) is shaded on the number line with open dots at both (3) and (9). Which interval notation is correct?

Correct Answer: C. ((3,9)). Explanation: दोनों खुले बिंदु बताते हैं कि दोनों endpoints शामिल नहीं हैं। परीक्षा में open-open segment को round brackets से लिखें। / Both open dots show that both endpoints are excluded. In exams write an open-open segment using round brackets.

Which concept should I revise for this Mathematics MCQ?

Both open dots show that both endpoints are excluded. In exams write an open-open segment using round brackets.

What exam hint can help solve this Mathematics question?

दोनों खुले बिंदु बताते हैं कि दोनों endpoints शामिल नहीं हैं। परीक्षा में open-open segment को round brackets से लिखें।