$sen\left(x\right)+cos\left(x\right)=\sqrt{2}$
$\frac{d}{dt}\left(\sqrt{\frac{t}{4t+1}}\right)$
$4\left(-2\right)^4$
$240+60-60$
$\left(r-5\right)\left(r+11\right)$
$x^2+2x=80$
$16\cdot64\cdot256$
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