Question

racionalizando  \frac{2}{3 \sqrt{2} } obtemos:

Answer 1

$\boxed{ \frac{2}{3 \sqrt{2} } . \frac{ \sqrt{2} }{ \sqrt{2} } = \frac{2 \sqrt{2} }{3 \sqrt{4} } = \frac{2 \sqrt{2} }{3.2}= \frac{ \sqrt{2} }{3} }$