Mathematics · 2023
JEE Main · 29 January 2023, Shift 2 · Q79
The set of all values of λ for which the equation cos^2 2 x-2 sin^4 x-2 cos^2 x=λ has a real solution x, is
The set of all values of $\displaystyle \lambda$ for which the equation $\displaystyle \cos ^2 2 x-2 \sin ^4 x-2 \cos ^2 x=\lambda$ has a real solution $\displaystyle x$, is
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle \left[-\frac{3}{2},-1\right]$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.