$-x^2-2x+484$
$6\cdot285$
$sen\:x\:tg\:x\:+1=sen\:x\:+tg\:x$
$\lim_{x\to\infty}\left(x^{\log\left(x\right)}-\log\left(x\right)^x\right)$
$\int_1^3\frac{2x^3-4x^2+3}{x^2}dx$
$3xy^3\left(2-2nx+4nx^2-n^2x^3\right)$
$\int\sin^42x\cos2x\:dx$
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