$cos\left(x\right)=\frac{1}{3}$
$\lim_{x\to-1}\:x^3+2x+5$
$\int\frac{x^2-5x-16}{x+2}dx$
$x^3-3x^2+3x-12\:entre\:x-1$
$\frac{98.07}{58.31}\cdot5,88$
$\left(\:2x\:\:-\:\:3y\:\right)^2$
$-\cos\left(x\right)=\cos\left(180-x\right)$
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