[tex] \frac{ \frac{1}{10} }{ \sqrt{2} } \times \sqrt{8} = \\ = \frac{1}{10} \times \frac{1}{ \sqrt{2} } \times \sqrt{8} \\ = \frac{1}{10 \sqrt{2} } \times \sqrt{8} \\ = \frac{ \sqrt{8} }{10 \sqrt{2} } \\ = \frac{ \sqrt{4} }{10} \\ = \frac{2}{10} \\ = \frac{1}{5} [/tex]
