\[\frac{\sqrt{7} + \sqrt{2}}{\sqrt{7} - \sqrt{2}} + \frac{\sqrt{7} - \sqrt{2}}{\sqrt{7} + \sqrt{2}} =\]
\[= \frac{\left( \sqrt{7} + \sqrt{2} \right)^{2} + \left( \sqrt{7} - \sqrt{2} \right)^{2}}{\left( \sqrt{7} - \sqrt{2} \right)\left( \sqrt{7} + \sqrt{2} \right)} =\]
\[= \frac{18}{5} = 3\frac{3}{5} = 3,6\]