$3\:y\:-14^2$
$4u-6<2\left(3u-10\right)$
$\left(5m-8n-4p\right)-\left(-3n-4p+6m\right)$
$\lim_{x\to\infty}\left(\frac{\sqrt{x+2}-3}{x^2-49}\right)$
$\frac{3x^3+8x^2-2}{3x+x^2-1}$
$sec\:u\:+tan\:u\:=\frac{cos\:u}{1-sin\:u}$
$\left(4^1\right)^3\left(3^1\right)^1$
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