$5x+6<10x-10$
$\lim_{x\to0}\left(\frac{e^x-e^{-x}}{\cos\left(x\right).\sin\left(x\right)}\right)$
$\frac{x^2-121}{x-11}$
$\frac{x^2+2x-8}{x-1}$
$9-z^{54}$
$\left(bf-4wv\right)^3$
$\int\frac{senx}{\sqrt{2-cos^2x}}dx$
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