यदि \(U={x:x\in N,\ 2x+1<12}\), तो (U) कौन सा है?
If \(U={x:x\in N,\ 2x+1<12}\), which set is (U)?
Explanation opens after your attempt
A. \(U=\{1,2,3,4,5\}\)
Concept
From (2x+1<12), we get (2x<11), so \(x<\frac{11}{2}\).
Why this answer is correct
The natural values are (1,2,3,4,5).
Exam Tip
When an inequality gives a fractional boundary, choose integer values carefully. चरण 1: (2x+1<12) से (2x<11), इसलिए \(x<\frac{11}{2}\)। चरण 2: प्राकृतिक मान (1,2,3,4,5) होंगे। चरण 3: असमानता में भिन्न सीमा आने पर पूर्णांक मान अलग से चुनें।
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