MCQ
$ \int e^x\left(\frac{1+\sin x}{1+\cos x}\right) d x= $ __________ +c
- ✓$e^x \tan \frac{x}{2}$
- B$e^r \tan x$
- C$e^x \cot \frac{x}{2}$
- D$e^{\frac{x}{2}} \tan \frac{x}{2}$
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