$\lim_{x\to0}\left(xln\left(\frac{1}{x}\right)\right)$

$\frac{\frac{\sqrt{3}}{\infty}}{\infty}$

$\int\left(\frac{3000}{1+0.25t}\right)dx$

$\left(5x^2-1\right)^2$

$48x^{5}:-3x^{2}$

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

$\left(x^3+x^6\right)$