MCQ
$\int \frac{e^x(1+x)}{\cos ^2\left(e^x x\right)} d x$ बराबर है
- A$-\cot \left(x^x e \right)+ c$
- B$\tan \left(x e ^x\right)+ c$
- C$\tan \left( e ^x\right)+ c$
- D$\cot \left( e ^x\right)+ c$
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