how integrating $\sqrt{1-x^4}$
47793
Integral $\int_0^1\sqrt{1-x^4}dx$
82113
Solve $\int cos{\sqrt x} \ dx$ using a combination of substitution and integration by parts
150843
Evaluation of $\int_0^{\pi/4} \sqrt{\tan x} \sqrt{1-\tan x}\,\,dx$
39629
Indefinite integration of $\int \frac{1}{1+\sqrt{x^2+2x+2}}dx$
95934
How to integrate $\int\frac{1}{\sqrt{1+x^3}}\mathrm dx$?
126576
Most efficient way to integrate $\int_0^\pi \sqrt{4\sin^2 x - 4\sin x + 1}\,dx$?
18931
Is there really no way to integrate $e^{-x^2}$?
91821
Integral of type $\displaystyle \int\frac{1}{\sqrt[4]{x^4+1}}dx$
63016
Integration of $\int\frac{1}{x^{4}+1}\mathrm dx$
24832
Integrating $\frac{1}{\sqrt{ax^2+bx+c}}$ for $a<0$
132610
Expand $\sqrt{1-x}$ up to and including the term $x^2$ (How should i proceed further)
104691
Integration of $\int_{0}^{1} \frac{x^k}{1-x} dx$
80736
How to integrate $\int\frac{\sqrt{1+x^2}}{x}\,\mathrm dx$
148613
Integrate $\int_{0}^{1}{x^{-x}(1-x)^{x-1}\sin{\pi x}dx}$
16712
Evaluate $\int_{-\pi/4}^{\pi/4}(\cos(t)+\sqrt{1+t^2}\cos(t)^3\sin (t)^3)dt$
154219
Help with integral $\int\frac{1}{\sqrt{\tan x}}dx$
152697
Integration practice of $\int \frac{\sqrt{25-y^2}}{y}dy$