$\frac{3\cos^2\left(x\right)+4\cos\left(x\right)+1}{\cos^2\left(x\right)+2\cos\left(x\right)+1}$
$36x\frac{-5z-8}{9}$
$9x^2-3x-2$
$\int xe^{-6}dx$
$\int\left(\frac{\ln x^{6}}{\ln x}+e^{5\ln x}\right)dx$
$-11-2d\ge1$
$-355-602$
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