\(यदि (B={x \in \mathbb{N}:x\) 36 का गुणनखंड है और x पूर्ण वर्ग है}), तो (B) कौन सा है?
\(If (B={x \in \mathbb{N}:x\) is a factor of 36 and x is a perfect square}), then what is (B)?
Correct answer and explanation
A. ({1,4,9,36})
Concept
(36) के गुणनखंड (1,2,3,4,6,9,12,18,36) हैं। / The factors of (36) are (1,2,3,4,6,9,12,18,36).
Why this answer is correct
इनमें पूर्ण वर्ग (1,4,9,36) हैं। / The perfect squares among them are (1,4,9,36).
Exam Tip
दो शर्तें हों तो पहले बड़ी सूची बनाकर फिर सही सदस्यों को छाँटें। / When two conditions are given, first list the larger set and then filter the correct elements.
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