यदि (A) सम अभाज्य प्राकृतिक संख्याओं का समुच्चय है, तो (A) किसके समान है?
If (A) is the set of even prime natural numbers, then (A) is equal to which set?
Explanation opens after your attempt
A. ({2})
Concept
Only (2) is both even and prime.
Why this answer is correct
\(4,6,8,\ldots\) are even but not prime.
Exam Tip
When two conditions are given, check both together. चरण 1: केवल (2) ही सम और अभाज्य दोनों है। चरण 2: \(4,6,8,\ldots\) सम हैं पर अभाज्य नहीं। चरण 3: दो शर्तें हों तो दोनों को साथ-साथ जाँचें।
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