Mathematics · 2021
JEE Main · 3 August 2021, Shift 1 · Q61
If S_1={x ∈ R: x^2+|x|-2=0} and S_2={x ∈ R: x^2+x-2=0}, then
If $\displaystyle \mathrm{S}_1=\left\{x \in \mathbb{R}: x^2+|x|-2=0\right\}$ and $\displaystyle \mathrm{S}_2=\left\{x \in \mathbb{R}: x^2+x-2=0\right\}$, then
Official answer
(4)
$\displaystyle \mathrm{S}_1 \cap \mathrm{~S}_2$ has $\displaystyle 1$ element.
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.