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

$\int_{\frac{6}{\pi}}^{\frac{2}{\left(3\pi\right)}}\:\frac{\cos\left(\frac{1}{x}\right)}{x^2}\:dx$

$6n^2-5n+1$

$a^2x^{-5}.$

$\lim_{x\to\infty}\left(\frac{\ln\left(x\right)}{x}\right)^{\frac{1}{x}}$

$\tan\left(x\right)-0.12=0.72$

$-1017+-722+-477+-282$