$\lim_{x\to\infty}\left(xe^{.5}\right)$
$4-2x\le5-4x$
$\frac{3x-10}{x-2}\le1$
$\frac{x-27}{\sqrt[3]{x}-3}3\:\:$
$25x^6-10x^2+35x$
$3ab^2\left(5a^2\:-\:7ab^3\right)$
$\cos^2\left(a\right)\cot^2\left(a\right)=\frac{1}{\tan^2\left(a\right)}-\cos^2\left(a\right)$
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