If 2 cos 2x 1 then x is equal to July 8, 2019 16 32 64 128 If cos theta 2x 1 x 2 then tan theta is equal to If cos 2x 2 cos x 1 then 2 cos 2 x sin 2 x is equal to If x 1 cos theta 1 cos theta then 2x 1 x 2 is equal to
