$\frac{1}{coseca+1}+\frac{1}{coseca-1}=2secatana$
$\frac{dy}{dx}=\left(xe^{x+3y}\right)$
$\left|-6+3\right|$
$\int\:\frac{1}{sen\left(2x+\frac{\pi\:}{4}\right)^2}dx$
$x^3+\:6x^2\:+\:12+8$
$\frac{72}{2}$
$-5x^3y^6\left(-2xy+4x+x^3y^6\right)$
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