$\int\frac{8-x}{\sqrt{25+x^2}}dx$
$\int_0^{\infty}\left(\sqrt{4\left(x+4\right)}\right)dx$
$\lim_{x\to-1}\left(\frac{\sqrt{x+1}-1}{\ln\left(x+1\right)}\right)$
$\left(2.72\right)\left(6.04\right)$
$\frac{ctg}{tan}=ctg^2$
$a:184\:c:513$
$-8x+7y-x-6y+4x$
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