Integrating $\int \frac{1}{\sqrt[4]{1+x^4}} dx $
116219
How can I find  $\int\frac1{\sqrt[4]{1+x^4}}\mathrm dx$?
67629
How to evaluate these indefinite integrals with $\sqrt{1+x^4}$?
24832
Integrating $\frac{1}{\sqrt{ax^2+bx+c}}$ for $a<0$
9390
$ \int_1^2\int_1^2 \int_1^2 \int_1^2 \frac{x_1+x_2+x_3-x_4}{x_1+x_2+x_3+x_4}dx_1dx_2dx_3dx_4 $
47452
Calculus Question: $\int_0^1\frac{(x-x^2)^4}{1+x^2}dx$
130736
Integrating $\int^0_\pi \frac{x \sin x}{1+\cos^2 x}$
81533
Integrating $\int_1^2 \int_0^ \sqrt{2x-x^2} \frac{1}{((x^2+y^2)^2} dydx $ in polar coordinates
51216
Different ways to tackle the integral $\int_0^1\sqrt\frac x{1-x}\,dx$
119572
Finding the integral of $\frac{x}{e^x + 1}$
108554
Integrating $\int_0^\infty\frac{1}{1+x^6}dx$
88368
Evaluating $\int_0^1 \sqrt{1 + x ^4 } \, d x $
91821
Integral of type $\displaystyle \int\frac{1}{\sqrt[4]{x^4+1}}dx$
148613
Integrate $\int_{0}^{1}{x^{-x}(1-x)^{x-1}\sin{\pi x}dx}$
40310
How to integrate $\frac{1}{\sqrt{1+x^2}}$ using substitution?
140507
Integrating $\frac{\arctan x}{x\sqrt{\smash[b]{1-x^2}}}$
152977
Integrate $\int\sqrt{x+\sqrt{x^{2}+2}} dx$ .
144039
Computing $ \int_0^{\infty} \frac{ \sqrt [3] {x+1}-\sqrt [3] {x}}{\sqrt{x}} \mathrm dx$