How to integrate (1/t) *( e^t )?
34368
Problem when integrating $e^x / x$.
146737
Integrate $\iiint_E z\,dx\,dy\,dz$ in $E=\lbrace(x,y,z) : x^2+y^2+z^2 \leq 4, z \leq 1 \rbrace$
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$
44398
How to compute $\int_0^{\pi/2}\frac{\sin^3 t}{\sin^3 t+\cos^3 t}dt$?
2411
Integrate $\int_0^{\pi/2} \frac{1}{1+\tan^\alpha{x}}\,\mathrm{d}x$
49203
Evaluating $\int \sqrt{1 + t^2} dt$?
100194
Calculating $ \int _{0} ^{\infty} \frac{x^{3}}{e^{x}-1}\;dx$
142821
Why?$\int_0^1\int_{u(t)}^{u(t)+w(t)} f(t,v(t)) dv dt = \int_0^1 f(t,u(t)+\theta w(t))w(t) dt; ~~\theta\in[0,1] $
104691
Integration of $\int_{0}^{1} \frac{x^k}{1-x} dx$
67322
evaluate $\int_{0}^{\infty}\cos(t) t^{z-1}dt=\Gamma(z)\cos(\frac{\pi z}{2})$
100711
$\int_{-\infty}^{\infty}e^{-zt^2 + 2wt} \ dt = e^{w^2 / z} \sqrt{\frac{\pi}{z}}$ for $z,w \in \mathbb{C}, Re(z) > 0$
30382
Integrate full derivative
123767
How to integrate $\int \frac{1}{\cos(x)}\,\mathrm dx$
158614
Laplace transform of $1/t$
84683
integrate $dx/(a^2 \cos^2x+b^2 \sin^2x)^2$
70789
Integrating $\ln(x)\times\ln(1-x)$
146579
What is the right first step to take when integrating $1/(2+ \sin x + \cos x)$?