$-\log\left(x\right)=f$

$\lim_{x\to3}\left(\frac{x^{\frac{1}{5}}-3^{\frac{1}{5}}}{x^{\frac{1}{6}}-3^{\frac{1}{6}}}\right)$

$x+1\cdot x-1$

$\lim_{x\to1}\left(\frac{4\ln\left(x\right)}{3x^2-2}\right)$

$\:5pq-4p+5q-3pq-2p$

$\int_{\frac{1}{6}}^{\frac{1}{2}}\csc\left(\pi f\right)\cot\left(\pi f\right)df$

$\int x^3e^{-\frac{x}{6}}dx$