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The set of all values of \(\lambda\) for which the equation \(\cos ^2 2 x-2 \sin ^4 x-2 \cos ^2 x=\lambda\) [JEE Main 20…

Q1

The set of all values of \(\lambda\) for which the equation \(\cos ^2 2 x-2 \sin ^4 x-2 \cos ^2 x=\lambda\)

[JEE Main 2023, 29 Jan (Shift 2)]

a

\([-2,-1]\)

b

\(\left[-2,-\frac{3}{2}\right]\)

c

\(\left[-1,-\frac{1}{2}\right]\)

d

\(\left[-\frac{3}{2},-1\right]\)

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