$\lim_{x\to-2}\left(\frac{2y^2-8y+8}{y^3+4y^2+4y}\right)$
$2\sin\left(x\right)^2-\cos\left(x\right)-2$
$\frac{x}{7}+2=\frac{x}{7}$
$\left(m-12\right)\left(m+7\right)$
$\left(cos\left(3\pi\right)sin\left(3\pi\right)\right)$
$cot\left(\frac{\pi}{2}-\left(x\right)\right)$
$\left(2.71828182846^{7.2}\right)\cdot3$
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