Mathematics · 2019
JEE Main · 9 April 2019, Shift 1 · Q61
If the function f: R -{1,-1} → A defined by f(x)=x^2/(1-x^2), is surjective, then A is equal to:
If the function $\displaystyle f: \mathbf{R}-\{1,-1\} \rightarrow \mathrm{A}$ defined
by $\displaystyle f(x)=\frac{x^2}{1-x^2}$, is surjective, then A is equal to :
Official answer
(1)
$\displaystyle \mathbf{R}-[-1,0)$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.