\(यदि (A={x\in \mathbb{N}:x\) is divisible by 2 and x is odd}) है, तो (A) क्या है?
\(If (A={x\in \mathbb{N}:x\) is divisible by 2 and x is odd}), what is (A)?
Explanation opens after your attempt
A. \(\varnothing\)
Concept
A natural number divisible by (2) is even.
Why this answer is correct
No number can be both even and odd at the same time.
Exam Tip
When conditions conflict, check for the empty set. चरण 1: (2) से विभाज्य प्राकृतिक संख्या सम होती है। चरण 2: कोई संख्या एक साथ सम और विषम नहीं हो सकती। चरण 3: विरोधी शर्तें मिलें तो रिक्त समुच्चय की संभावना जाँचें।
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