$20+107+116+99+45$
$\left(y-11\right)^{2}$
$x\left(9x-1\right)-8x^2+1>x^2-x-1$
$\cos^20\left(1+\tan^20\right)$
$\frac{2\cos^2\left(x\right)}{1-2\cos^2\left(x\right)}$
$\int\frac{8x+7}{x^2+1}dx$
$|-\left(-11\right)|\:\:\:$
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