$3x+2\left(x-1\right)=6x-9$
$\ln\left(x\right)=5.7$
$\int-12dx$
$\lim_{x\to-1}\left(\frac{x^2+3x+2}{x^22-1}\right)$
$2\tan\left(x\right)\cos^2\left(x\right)-1=0$
$\left(\cos\:\left(nx\right)+i\sin\:\left(nx\right)\right)^2$
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