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