$sec\left(t\right)tan\left(t\right)=\frac{1+tan^2\left(t\right)}{csc\left(t\right)}$
$\left|\left(3^2\right)^3\right|^3$
$2x\left(4\right)+3x\left(3\right)-x\left(2\right)-1\:entre\:x-2$
$\left(4w\right)^{-1}$
$-2x^4-4x^3+14x^2-8x$
$\left(\frac{c^{-5}}{c^6}\right)^{\frac{3}{11}}$
$\left(-7x^4+6x+5\right)+\left(3x^5-2x^2+2\right)$
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