Mathematics Answer, Explanation and Revision Hints
यदि \(P={x:x\in \mathbb{N},x^2=9}\), तो (P) कौन सा समुच्चय है? / If \(P={x:x\in \mathbb{N},x^2=9}\), which set is (P)?
Correct Answer: B. ({3}). Explanation: चरण 1: \(x^2=9\) के संख्यात्मक मान (-3) और (3) हो सकते हैं। चरण 2: \(x\in \mathbb{N}\) है, इसलिए केवल (3) लिया जाएगा। चरण 3: हर शर्त को साथ पढ़ें, तभी सही समुच्चय बनेगा। / Step 1: The numerical values satisfying \(x^2=9\) can be (-3) and (3). Step 2: Since \(x\in \mathbb{N}\), only (3) is allowed. Step 3: Read every condition together before forming the set.
Why is option B correct in this Mathematics MCQ?
\(x\in \mathbb{N}\) है, इसलिए केवल (3) लिया जाएगा। / Since \(x\in \mathbb{N}\), only (3) is allowed.
What should I remember for this Mathematics concept?
हर शर्त को साथ पढ़ें, तभी सही समुच्चय बनेगा। / Read every condition together before forming the set.
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