$\lim_{x\to0}\:\frac{\left(\sqrt{3}-\sqrt{x+3}\right)}{x}$
$-1-x+2a-2ax$
$10\cdot10\cdot8$
$4x^2-3;\:x=2$
$\sqrt[20]{\frac{7^{20}+13^{20}}{7^{-20}+13^{-20}}}$
$5w-9+7w+2$
$\frac{dy}{dx}\left(\sqrt{5x+sinh^2\left(4x\right)}\right)$
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