$\lim_{x\to1}\left(ln\left(ln\left(x\right)\right)\right)$

$\left(2x^{2\:}-x+2\right)$

$\int\frac{68}{x^2\left(\sqrt{x^2+9}\right)}dx$

$arccs\:\frac{2\sqrt{3}}{3}$

$\frac{-1}{m-2}\:=\:\frac{-6}{m+3}$

$\int\frac{1}{8-x^2}dx$

$\int\frac{\left(6x+5\right)}{\left(9x^2+15x\right)^3}dx$