\(यदि (A={x\in\mathbb{N}:x\) अभाज्य है और x सम है और \(x<10}), तो (A) किसके बराबर है\)?
\(If (A={x\in\mathbb{N}:x\) is prime and x is even and \(x<10}), what is (A) equal to\)?
Explanation opens after your attempt
A. ({2})
Concept
The even natural numbers less than (10) are (2,4,6,8).
Why this answer is correct
Only (2) among them is prime.
Exam Tip
When even and prime appear together, check (2) specially. चरण 1: (10) से छोटे सम प्राकृतिक मान (2,4,6,8) हैं। चरण 2: इनमें केवल (2) अभाज्य है। चरण 3: सम और अभाज्य साथ दिखें तो (2) को विशेष रूप से जाँचें।
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