यदि \(J_1={x:x\in \mathbb{Z}, |x|<3}\) है, तो \(J_1\) में कितने अवयव हैं?

If \(J_1={x:x\in \mathbb{Z}, |x|<3}\), how many elements does \(J_1\) have?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

(|x|<3) means (-3<x<3).

Step 2

Why this answer is correct

The integers are (-2,-1,0,1,2), giving (5) elements.

Step 3

Exam Tip

In absolute value questions, first convert the condition into an ordinary inequality. चरण 1: (|x|<3) का अर्थ है (-3<x<3)। चरण 2: पूर्णांक (-2,-1,0,1,2) मिलते हैं, कुल (5)। चरण 3: परिमाण वाले प्रश्नों में पहले सीमा को साधारण असमानता में बदलें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(J_1={x:x\in \mathbb{Z}, |x|<3}\) है, तो \(J_1\) में कितने अवयव हैं? / If \(J_1={x:x\in \mathbb{Z}, |x|<3}\), how many elements does \(J_1\) have?

Correct Answer: B. (5). Explanation: चरण 1: (|x|<3) का अर्थ है (-3<x<3)। चरण 2: पूर्णांक (-2,-1,0,1,2) मिलते हैं, कुल (5)। चरण 3: परिमाण वाले प्रश्नों में पहले सीमा को साधारण असमानता में बदलें। / Step 1: (|x|<3) means (-3<x<3). Step 2: The integers are (-2,-1,0,1,2), giving (5) elements. Step 3: In absolute value questions, first convert the condition into an ordinary inequality.

Which concept should I revise for this Mathematics MCQ?

(|x|<3) means (-3<x<3).

What exam hint can help solve this Mathematics question?

In absolute value questions, first convert the condition into an ordinary inequality. चरण 1: (|x|<3) का अर्थ है (-3<x<3)। चरण 2: पूर्णांक (-2,-1,0,1,2) मिलते हैं, कुल (5)। चरण 3: परिमाण वाले प्रश्नों में पहले सीमा को साधारण असमानता में बदलें।