$cos\left(arccos\:2x-arctan\:x\right)$
$\int_0^{\infty}\left(\frac{x^{-1}+x^{-2}}{1+x^2}\right)dx$
$a+b+2\:a+b\:-2$
$\left(ac+bd+ce\right)^2$
$\left(4a^24\right)^2$
$\int_0^{2\pi}\left(\cos\left(x\right)\right)dx$
$lnx=6$
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