\( \int \frac{\cos 2 x}{\cos x} d x \) is equal to (A) \( 2 \sin x+\log (\sec x-\tan x)+C \) (B)...

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\( \int \frac{\cos 2 x}{\cos x} d x \) is equal to
(A) \( 2 \sin x+\log (\sec x-\tan x)+C \)
(B) \( 2 \sin x-\log (\sec x-\tan x)+C \)
(C) \( 2 \sin x+\log (\sec x+\tan x)+C \)
(D) \( 2 \sin x-\log (\sec x+\tan x)+C \)
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