$5-18.53$
$5^3\cdot5^2.5^4$
$\sqrt{2\sin\left(\frac{x}{2}\right)}calcular\:\left[f\left(\frac{\pi}{3}\right)\right]^2$
$30+5$
$625^2-4$
$\frac{1-sen^2}{cotg}$
$x\:\frac{dy}{dx}+2y=8-\frac{1}{x}$
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