Mathematics · 2023
JEE Main · 29 January 2023, Shift 1 · Q62
Let f: R → R be a function such that f(x)=(x^2+2 x+1)/(x^2+1). Then
Let $\displaystyle f: \mathbf{R} \rightarrow \mathbf{R}$ be a function such that $\displaystyle f(x)=\frac{x^2+2 x+1}{x^2+1}$. Then
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle f(x)$ is one-one in $\displaystyle [1, \infty)$ but not in $\displaystyle (-\infty, \infty)$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.