$\cos\left(\arcsin\left(x\right)-\arcsec\left(x\right)\right)$
$\frac{2x^2+x-1}{\sqrt{x^2+3}}$
$\left(0\right)\left(1\right)+\left(-1\right)\left(-1\right)+\left(-2\right)\left(0\right)$
$12x+4x-21$
$-5x+4y+7-10y$
$\lim_{x\to\infty}\left(-\frac{14}{5\left(x^2+2x\right)}\right)$
$\left(-2x^9y^8\right)^4$
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