The values of x in (-\pi, \pi) which satisfy the equation 8^{1+\cos ^2 x+\cos ^4 x+\cdots \cdots}=4^3 are [AP EAPCET 22 May 2024 Shift 2]

Correct Answer is : ±π4,±3π4

\pm \frac{\pi}{4}, \pm \frac{3 \pi}{4}

\pm \frac{\pi}{6}, \frac{\pi}{3}

Trigonometric Equations

Section: Mathematics

Question : 12 of 24

Marks: +1, -0

The values of x in (−π,π) which satisfy the equation 81+cos2x+cos4x+⋯⋯=43 are

[AP EAPCET 22 May 2024 Shift 2]

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