$\:\int_{1.5}^{2.5}\:2sen\left(1.5\pi\:\:x\right)dx$
$\frac{dy}{dx}=y^4\sinh\left(x\right)$
$\left(\frac{2}{x}-\frac{1}{x^2}\right)^2$
$x^2-40x$
$\left(\frac{5}{3}w+\frac{7}{3}y\right)^2$
$6a^x+1+8a^x^{+^1}$
$\int\frac{x-20}{x^2-22x+121}dx$
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