$$\int {{{\cos 2x} \over {\cos x}}dx = } $$
- 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$$2\sin x + \log |\sec x - \tan x| + C$$
✓ Correct answer: C
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