$\int_1^{\infty}\left(\frac{7}{x^2}\right)dx$
$\left(15\:+\:4q\right)\left(15\:+\:4q\right)$
$1,194+1,248$
$8+\left(-11\right)-\left(-3\right)-4+4$
$f\left(x\right)=sen^{\left(2\right)}\left(x-cosx\right)$
$-x\left(2x+1\right)^5$
$\frac{6}{\frac{2}{7}}$
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