$3x^2-9x-2$
$10x^2+3x-4$
$\frac{cos\left(6x\right)}{sin\left(6x\right)}=cot\left(6x\right)$
$0.375-0.225$
$\frac{2\sqrt{6}}{\sqrt{2}}$
$x^2+5x+\frac{6}{x}+2$
$\frac{9.540}{36}$
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