$\lim_{x\to3}\left(2\right)$
$x-2\ge2\cdot\left(x-4\right)$
$\lim_{x,y\to10,1}\left(\frac{100x^2-20xy+y^2}{10x-y}\right)$
$2a\left(3a-4\right)$
$4.49-1.89$
$\int_1^{\sqrt{2}}\left(\frac{4}{\sqrt{4-x^2}}\right)dx$
$3n+10;\:n=-3$
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