$2\sin^2\left(a\right)=5\sin\left(a\right)-2$
$\lim_{u\to\frac{\pi}{4}}\left(\frac{8\tan\left(u\right)-8\cot\left(u\right)}{u-\frac{\pi}{4}}\right)$
$2x+3<3-x$
$\left(3^2\right)+\left(\sqrt{2}\right)^2$
$120^2$
$x^3y^2z^6x^{-1}yz^{-5}$
$6x^2+17x+12$
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