Răspuns :

Răspuns:

[tex] b) \frac{5 \sqrt{2} }{6} \: \: \: c) \frac{4 \sqrt[]{3} }{5} \: \: \: d) \frac{2 \sqrt{5} }{3} \: \: \: e) \frac{7 \sqrt{2} }{9} [/tex]