Answer
$$\frac{5-\sqrt{6}}{19}$$
Work Step by Step
Simplifying the expression using the rules of radicals, we find:
$$\frac{1\cdot \left(5-\sqrt{6}\right)}{\left(5+\sqrt{6}\right)\left(5-\sqrt{6}\right)} \\ \frac{5-\sqrt{6}}{19}$$
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