$\int\frac{x+1}{\sqrt{x^2-1}}dx$
$5x^2-3x+8=0$
$n\left(t\right)=ln\left(re^{-yt}\right)$
$\left(2x-3y+2z\right)^2$
$2x^2+4=6x$
$21\cos\left(\frac{134\pi}{12}\right)+26$
$3\:+\:-\:2\:-\:-5\:-\:\left(3\:-\:14\right)\:$
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