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
B. (5)
Concept
(|x|<3) means (-3<x<3).
Why this answer is correct
The integers are (-2,-1,0,1,2), giving (5) elements.
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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