$\lim_{x\to-0.01}\left(\frac{sen\:2x}{4x}\right)$
$\int\frac{sinx+2}{3cosx}dx$
$\int_{-1}^2e^{3x}dx$
$x+1\sqrt{\left(x^2+2\right)}$
$10,5,0-5,-10$
$2w^2-14w=-12$
$3.77\cdot1.5$
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