Question

Racionalize
a) raiz de 3 / raiz de 7

√ 3
----------
√7

Answer 1

$\frac{ \sqrt{3} }{ \sqrt{7} } \to \\\\\\ \frac{ \sqrt{3} }{ \sqrt{7} } * \frac{ \sqrt{7} }{ \sqrt{7} } \to \\\\\\ \frac{ \sqrt{3} * \sqrt{7} }{ \sqrt{49} } \to \\\\\\ \frac{ \sqrt{3} * \sqrt{7} }{7 }\to \\\\\\ \frac{ \sqrt{21} }{7 }$