$0.111\left(\int_{1.369}^{\pi}\left(cos^2\left(x\right)-0.2\cos\:\left(x\right)\right)\right)dx$
$2\left(5w-2\right)$
$18h^2-12h+2$
$-2\:+\:2\:-\:\left(-2\right)\:\cdot$
$2\left(y+9-3y\right)$
$2+7-8\cdot7$
$\int\frac{1}{x^2-x-1}dx$
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