$y''+2y'+5y=0$
$-2\sin\left(x\right)\cdot\sin\left(x\right)$
$x\:+\:5\:=\:-8\:$
$\left(10xy^{11}\right)^{2}$
$x-6=62$
$\lim_{x\to\infty}\ln\left(\cos\left(\frac{1}{x^2}\right)\right)$
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