$\lim_{x\to0}\left(\frac{ln\left(\frac{sen\left(x\right)}{x}\right)}{ln\left(1+x\right)}\right)$
$\int-3x^{-4}\:dx$
$\left(2\right)^{-2}\left(2\right)^3.\left(-2\right)^4$
$\left(\frac{9}{2}b\right)^2$
$6x^2-11x+10$
$x^{2\:}-30x+56$
$\left(n^6\right)^3$
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