$\frac{2x+10}{x+3}\ge1$
$8cos5xsec3x$
$5-\left(-4\right)+12-4+\left(-2\right)-\left(-5\right)+10+\left(-8\right)-3+11$
$15x-9<6x-13$
$\left(x+3y-2z\right)^2$
$\frac{dy}{dx}\left(y=\left(sin\:3x\right)^{3x}\right)$
$2n^2+3n+2$
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