$\int\frac{x}{\left(h^2+x^2\right)^{\frac{3}{2}}}dx$
$\int10\sqrt{m^3}\:dm$
$\left(3y\right)^2+10y+8$
$\left(x-1\right)\left(x+2\right)\left(x+3\right)$
$\lim_{x\to0}\left(\frac{e^{-x}-e^{-2x}}{sen^2x}\right)$
$-4\left(4-2+5\right)-1-\{1-[8+\left(-3-1\right)-\left(-7+4\right)]+3-4\}$
$\cos=\frac{12}{5}$
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