$$\frac{\sqrt{5}(\sqrt{30}+1)}{5}$$
$\frac{\sqrt{5}\left(\sqrt{30}+1\right)}{5}\approx 2.896703338$
$$\frac{\sqrt{5}\sqrt{30}+\sqrt{5}}{5}$$
$$\frac{\sqrt{5}\sqrt{5}\sqrt{6}+\sqrt{5}}{5}$$
$$\frac{5\sqrt{6}+\sqrt{5}}{5}$$
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