Evaluate $\int\frac{dx}{(1+x^4)^{1/4}}$
91821
Integral of type $\displaystyle \int\frac{1}{\sqrt[4]{x^4+1}}dx$
119669
Evaluate $\int \frac{1}{\sin x\cos x} dx $
122913
Evaluate $\int \frac{\sec^{2}{x}}{(\sec{x} + \tan{x})^{5/2}} \ \mathrm dx$
120388
Evaluate $\int\frac{1}{1+x^6} \,dx$
27002
Evaluating $\int\limits_0^{\pi} \frac{dx}{1+2\sin^2x}$
43852
Evaluate $\lim_{x\to 0}\frac{e^{(x+1)^{1/x}}-(x+1)^{e/x}}{x^2}$
35861
Evaluate $\int_0^\infty\frac{\ln x}{1+x^2}dx$
93205
Compute: $\int_{0}^{1}\frac{x^4+1}{x^6+1} dx$
95403
Evaluating $\int \frac{\sec^2 x}{(\sec x + \tan x )^{{9}/{2}}}\,\mathrm dx$
77053
Evaluating $\int_{0}^{1}\frac{\arcsin{\sqrt{x}}}{x^4-2x^3+2x^2-x+1}\operatorname d\!x$
38515
Integral of $\frac{1}{x^4+1}$
104094
Integral of $\frac{1}{(1+x^2)^2}$
79466
Evaluating $\int_0^1 \log \log \left(\frac{1}{x}\right) \frac{dx}{1+x^2}$
100401
Evaluate $\int \frac{1}{(x^2+1)^2}dx$
81831
Evaluate $\int_0^{\infty}\frac{\log x}{1+e^x}\,dx$
116219
How can I find  $\int\frac1{\sqrt[4]{1+x^4}}\mathrm dx$?
147479
Evaluate $\int \frac{2-3x}{2+3x}\sqrt\frac{1+x}{1-x}dx$