$y'\:-\frac{y}{x}=lnx$
$x+y\:=132$
$\int4x\cos\left(4x\right)dx$
$\frac{2+2\sin\left(a\right)}{\cos\left(a\right)+\sin\left(a\right)\cos\left(a\right)}$
$9x-3\le0$
$16z^3+20z^2-4z^4+12z^5$
$8x^2y:\:2x:\:2y$
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