कौन-सा अंतराल \(2<x\leq 9\) को दर्शाता है?

Which interval represents \(2<x\leq 9\)?

Explanation opens after your attempt
Correct Answer

A. ((2,9])open at (2), closed at (9)

Step 1

Concept

In (2<x), (2) is not included.

Step 2

Why this answer is correct

In \(x\leq 9\), (9) is included.

Step 3

Exam Tip

The equality sign in an inequality includes the endpoint. चरण 1: (2<x) में (2) शामिल नहीं है। चरण 2: \(x\leq 9\) में (9) शामिल है। चरण 3: असमानता में बराबर का चिह्न सीमा को शामिल कराता है।

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Mathematics Answer, Explanation and Revision Hints

कौन-सा अंतराल \(2<x\leq 9\) को दर्शाता है? / Which interval represents \(2<x\leq 9\)?

Correct Answer: A. ((2,9]) / open at (2), closed at (9). Explanation: चरण 1: (2<x) में (2) शामिल नहीं है। चरण 2: \(x\leq 9\) में (9) शामिल है। चरण 3: असमानता में बराबर का चिह्न सीमा को शामिल कराता है। / Step 1: In (2<x), (2) is not included. Step 2: In \(x\leq 9\), (9) is included. Step 3: The equality sign in an inequality includes the endpoint.

Which concept should I revise for this Mathematics MCQ?

In (2<x), (2) is not included.

What exam hint can help solve this Mathematics question?

The equality sign in an inequality includes the endpoint. चरण 1: (2<x) में (2) शामिल नहीं है। चरण 2: \(x\leq 9\) में (9) शामिल है। चरण 3: असमानता में बराबर का चिह्न सीमा को शामिल कराता है।