$\left(-100^3\right)$
$\int\frac{1+z}{1+z^2}dz$
$-4\left(\frac{1}{2}x-3\right)$
$y'=\frac{sen\left(y\right)}{x}$
$\frac{-4x^4+20x^3-24x^2-2}{-2x^2+2x+1}$
$\frac{x+y}{2}-10;\:x=10;\:y=30$
$\int\frac{\left(1\right)}{x^2+x+2}dx$
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