$\int\frac{1}{\left(1-3f\right)^4}df$

$-27-54$

$\left(\sqrt[7]{a}\right)^2=a^{\frac{2}{7}}$

$\lim_{x\to\infty}\left(\frac{3x^2-5}{3x^2+2}\right)^{\left(\frac{3}{5}\right)^2}$

$\lim_{x\to0}\left(\arccos\left(x\right)\right)\ln\left(x\right)$

$\frac{d^4}{dx^4}\:\left(\frac{4x-1}{5x+3}\right)$

$\lim_{x\to\infty}\left(\frac{-3x+13}{7x^2-15x-10}\right)$