Question

3 /3√7

Pobl mas de radiciaçao

Answer 1

$\dfrac{3}{3 \sqrt{7}} \\ \\ \\ \dfrac{3.(3\sqrt{7})}{(3 \sqrt{7})(3 \sqrt{7})} \\ \\ \\ \dfrac{9\sqrt{7}}{9 . 7} \\ \\ \\=\ \textgreater \ \dfrac{\sqrt{7}}{7}$