\(समुच्चय (A={x:x\) is a natural number and \(x^2=4}) क्या है\)?
\(What is the set (A={x:x\) is a natural number and \(x^2=4})\)?
Explanation opens after your attempt
B. ({2})
Concept
The numerical solutions of \(x^2=4\) can be (-2) and (2).
Why this answer is correct
Since (x) is a natural number, only (2) is allowed.
Exam Tip
Read all conditions before forming the set. चरण 1: \(x^2=4\) के संख्यात्मक हल (-2) और (2) हो सकते हैं। चरण 2: पर (x) प्राकृतिक संख्या है, इसलिए (2) ही लिया जाएगा। चरण 3: शर्तों को पूरा पढ़कर ही समुच्चय लिखें।
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