$\lim_{x\to0}\left(\frac{\ln\left(x+1\right)}{\cos\left(\cos\left(x\right)\right)-1}\right)$

$\lim_{x\to3}2x+1$

$\int\sqrt{8}\:dx$

$\sec^4\left(x\right)-tan^4\left(x\right)=1$

$a4\:\:+1a^2\:\:\:+\:1$

$\int\frac{\left(x^3+2x^2+1\right)}{\left(x^2+1\right)}dx$

$\log\left(8\right)-2\log\left(x^4\right)$