समुच्चय \(W={x:x\in \mathbb{Z},,x^2<2}\) का सही सूची रूप क्या है?
What is the correct roster form of \(W={x:x\in \mathbb{Z},,x^2<2}\)?
Explanation opens after your attempt
A. \(W=\{-1,0,1\}\)
Concept
Check integer values for \(x^2<2\).
Why this answer is correct
((-1)2=1), \(0^2=0\), and \(1^2=1\), all less than (2).
Exam Tip
((-2)2=4) and \(2^2=4\), so they are not included. चरण 1: \(x^2<2\) के लिए पूर्णांक मान जाँचें। चरण 2: ((-1)2=1), \(0^2=0\), \(1^2=1\), ये सभी (2) से कम हैं। चरण 3: ((-2)2=4) और \(2^2=4\) होने से वे शामिल नहीं होंगे।
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