$2x+4y=13$
$\int\left(1+sen^3x\right)\left(senxcosx\right)dx$
$x\left(x+y\right)=5x+3$
$\left(\frac{cot^2\left(x\right)}{cos^2\left(x\right)}\right)-cot^2\left(x\right)$
$1+sen\left(a\right)=3sen\left(s\right)$
$4^3-6^2$
$a^2+32a+256$
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