Mathematics · 2022
JEE Main · 29 June 2022, Shift 1 · Q15
The domain of the function cos^-1((2 sin^-1(1/(4 x^2-1)))/(π)) is:
The domain of the function $\displaystyle \cos ^{-1}\left(\frac{2 \sin ^{-1}\left(\dfrac{1}{4 x^2-1}\right)}{\pi}\right)$ is :
Official answer
(4)
$\displaystyle \left(-\infty, \frac{-1}{\sqrt{2}}\right] \cup\left[\frac{1}{\sqrt{2}}, \infty\right) \cup\{0\}$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.