If \cos 2 x=(\sqrt{2}+1) (\cos x- {1}/{\sqrt{2}}) , \cos x \neq \frac{1}{2} then x \in

Correct Answer is : {2nπ±π4:n∈Z}

\{2 n \pi \pm \frac{\pi}{3}: n \in Z\}

\{2 n \pi \pm \frac{\pi}{6}: n \in Z\}

\{2 n \pi \pm \frac{\pi}{2}: n \in Z\}

\{2 n \pi \pm \frac{\pi}{4}: n \in Z\}

EAMCET Engineering 2005 Solved Paper

Section: Mathematics

Question : 108 of 160

Marks: +1, -0

If ‌‌cos‌2‌x=(√2+1)(cos‌x−‌

√2

),cos‌x≠‌

then x∈

Go to Question:

Prev Question

Next Question