$\int\left(5sec^4x\right)dx$

$4cm^2-28m$

$\int_0^{\pi}\left(3\cos\left(x\right)\sin\left(x\right)\right)dx$

$\int\left(\frac{12x-18}{\left(3x^2-14x+8\right)}\right)dx$

$55-x<25$

$\lim_{x\to8}\left(\frac{x-8}{\sqrt{x-4\:}\:\:-2}\right)$

$\int5^{\frac{-x}{2}-2}dx$