\( \int \frac{x.e^x}{(1 + e^x)^2} \, dx \)

\( \int e^{\sqrt{x}} \, dx \)

Làm thêm:    \( \int (2x - 1) e^{\sqrt{x}} \, dx \)

\( \int e^{2x} \sin{3x} \, dx \)

Làm thêm:
\( \int e^{2x} \sin^2{x} \, dx = \int e^{2x} \cdot \frac{(1 - \cos2x)}{2} \, dx \)

\( \int e^{\sin{x}} \sin{2x} \, dx \)

\( \int e^{\sin^2{x}} \sin{x} \cos^3{x} \, dx \)