यदि (A=(2,7)) और (B=[5,9]), तो \(A\cup B\) क्या होगा?

If (A=(2,7)) and (B=[5,9]), what is \(A\cup B\)?

Explanation opens after your attempt
Correct Answer

A. ( (2,9] )

Step 1

Concept

The intervals overlap between (5) and (7). Since (2) is not included and (9) is included, ((2,9]) is correct.

Step 2

Why this answer is correct

The correct answer is A. ( (2,9] ). The intervals overlap between (5) and (7). Since (2) is not included and (9) is included, ((2,9]) is correct.

Step 3

Exam Tip

दोनों अंतराल (5) से (7) के बीच जुड़ते हैं। (2) शामिल नहीं और (9) शामिल है, इसलिए ((2,9]) सही है।

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Mathematics Answer, Explanation and Revision Hints

यदि (A=(2,7)) और (B=[5,9]), तो \(A\cup B\) क्या होगा? / If (A=(2,7)) and (B=[5,9]), what is \(A\cup B\)?

Correct Answer: A. ( (2,9] ). Explanation: दोनों अंतराल (5) से (7) के बीच जुड़ते हैं। (2) शामिल नहीं और (9) शामिल है, इसलिए ((2,9]) सही है। / The intervals overlap between (5) and (7). Since (2) is not included and (9) is included, ((2,9]) is correct.

Which concept should I revise for this Mathematics MCQ?

The intervals overlap between (5) and (7). Since (2) is not included and (9) is included, ((2,9]) is correct.

What exam hint can help solve this Mathematics question?

दोनों अंतराल (5) से (7) के बीच जुड़ते हैं। (2) शामिल नहीं और (9) शामिल है, इसलिए ((2,9]) सही है।