1.\int \frac{dx}{\cos x \sqrt{\cos 2x}} =a.\sin^{-1}(\tan x) + cb.\frac12\log\tan(\frac\pi4 + x) + cc.2\log\frac{1+\tan x}{1-\tan x} + cd.\frac12\log\frac{1-\tan x}{1+\tan x} + cLogin to continueOnly logged in users canattempt or see the solution.