JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

1 Easy

1 of 1

Application +4 | -1

\int \frac{\cos 2 x}{\cos x} d x

is equal to

View answer and explanation

Correct option: D

2 \sin x-\log |(\sec x+\tan x)|+c

Option D is correct because the integral simplifies to

2\sin x - \log |\sec x + \tan x| + c

after using the trigonometric identity

\cos 2x = 2\cos^2 x - 1

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