$8-6w+4-9w$
$5^3\cdot10^3$
$2x+8\ge x-3$
$2\left(\cos\left(0.5x\right)\right)^2=1$
$\frac{d^{12}}{dx^{12}}\left(cos\left(3x\right)\right)$
$\lim_{x\to\infty}\left(\frac{4x^2+3x}{7x^3+9}\right)$
$6b+7b-10$
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