Question

Rationalizati numitorii2-radical 2/radical din 2

Answer 1

$\frac{2 - \sqrt{2} }{ \sqrt{2} } = \frac{(2 - \sqrt{2}) \sqrt{2} }{ \sqrt{2} \sqrt{2} } = \frac{2 \sqrt{2} - 2 }{2} = \frac{2( \sqrt{2} - 1) }{2} = \sqrt{2} - 1$