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The set of all values of \(\lambda\) for which the equation cos 2 2x – 2sin 4 x – 2cos 2 x = \(\lambda\) has a real solu…

Q1

The set of all values of \(\lambda\) for which the equation cos2 2x – 2sin4 x – 2cos2 x = \(\lambda\) has a real solution x, is

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

a

\(\left[−2,-1\right]\)

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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