MCQ
$I = \int {\frac{{dx}}{{(1 + {e^x})\,\,(1 + {e^{ - x}})}}} $નું સંકલન મેળવો.
- ✓$\frac{{ - 1}}{{1 + {e^x}}}$
- B$\frac{{{e^x}}}{{1 + {e^x}}}$
- C$\frac{1}{{1 + {e^x}}}$
- Dએકપણ નહિ.
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