Getting two different answers for $\int \frac{1}{2x} \, dx $
140260
Is $\int \frac{1}{2x} \, dx $ equal to $\frac{\ln|2x|}{2}+ C$ or $\frac{\ln|x|}{2}+ C$
69978
Evaluating $\int_1^\infty \frac{1}{x(x^2+1)}\ dx$
56032
How come $\frac{1}{1-x}$ and $\frac{x}{1-x}$ have the same derivative?
146770
Why is $\frac{1}{\frac{1}{0}}$ undefined?
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 $
51291
How can I express $\int \frac{1}{f'(x)}$ in terms of $f(x)$
110731
How to compute $\int_{0}^{1}\int_{0}^{1} \frac{x-y}{(x+y)^3} dxdy$
120085
Compute $\int \frac{-3}{2x^2-x-1} dx$
63251
Evaluation of $\int^1_0\frac{x^b-x^a}{\ln x} d x=\ln{{\frac{1+b}{1+a}}}$
21522
This integral is defined ? $\displaystyle\int_0^0\frac 1x\:dx$
67837
Evaluation of $\int_{0}^{1}\frac{x\ln (x)}{\sqrt{1-x^2}}dx$
80710
Does $\int_{-1}^1 \frac 1 x dx$ equal zero?
115598
Evaluating $\int_{0}^{1} dx\frac{\log(1+x)}{1 + x^2}$
126654
What is the definite integral $\int_{-1}^1 \frac{1}{x} dx$ equal to?
70013
How to calculate $\int \frac{x^2 }{(x^2+1)^2} dx$?
145403
Stuck in integration: $\int {\frac{dx}{( 1+\sqrt {x})\sqrt{(x-{x}^2)}}}$
17852
$\int \frac{dx}{x\log(x)}$