Arriving to the integral of $\sec(x)$
18841
Ways to evaluate $\int \sec \theta \, \mathrm d \theta$
148613
Integrate $\int_{0}^{1}{x^{-x}(1-x)^{x-1}\sin{\pi x}dx}$
102639
How to receive the result of the integral $ \int\frac{1}{x}dx$ is $\ln|x|$?
149723
Can I have some assistance in proving this integral?
103374
A Problem on Improper Integrals
154067
Not sure how to go about solving this integral
68241
Integral $\int_0^1 \frac{\ln(1-x)\ln(1+x^2)}{x}dx$
130670
Solving Integrals
123500
Integration of $\frac {1}{1+\sin x}$
148826
Integral of $ 1 \, / \, (1 + a \, \cos(x) )$
53519
Finding $\int_0^1{\frac{x^4(1-x)^4}{1+x^2}}dx$
7835
Tricky elementary integral $\int_{0}^{\frac{\pi}{2}}x\cot(x)dx$.
91306
Integration of $\frac{1}{\log(x)}$
122843
Finding $\int_0^\infty \frac{\cos(ax)-\cos(bx)}{x}dx$
57686
Finding $ \int^1_0 \frac{\ln(1+x)}{x}dx$
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
48408
Definite Integral of $\sin(\sin x)$