Integrate the function $5\left(\frac{x^2+3x+5}{2x-1}\right)\left(\frac{2x^2-2x-13}{4x^2-4x+1}\right)$

Find the integral

$\int\frac{cos\left(x\right)}{x}dx$

Find the integral

$\int\left(9+x^2\right)^{-2}dx$

Find the integral

$\int\frac{\arctan\left(x\right)}{x}dx$

Find the integral

$\int\left(\frac{\arctan\left(x\right)}{x}\right)dx$

Find the integral

$\int\cos\left(x\right)\div xdx$

Find the integral

$\int\left(\frac{arctan\left(2x\right)}{x}\right)dx$

Find the integral

$\int\sin\left(x\right)\div xdx$