$\csc^42x\:-\:4=\:0$
$-4\left(-1+-2\right)$
$\frac{3n^4}{3n^3}$
$\frac{x^4-8x^3+3x+10}{x-10}$
$\int_0^{\frac{\pi}{8}}\left(\sec^2\left(x\right)\right)dx$
$\frac{8}{1}+-\frac{15}{5}$
$224.75-42.5$
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