Question

Racionalize:

A) 2
———
3 √5


B) 3
———
2- √7

Answer 1

Resposta:

Leia abaixo

Explicação:

$\boxed{\frac{2}{3\sqrt{5} } }$

$\boxed{\frac{2}{3\sqrt{5}} .\frac{3\sqrt{5}}{3\sqrt{5}} }$

$\boxed{\boxed{\frac{6\sqrt{5}}{45}}}$

$\boxed{\frac{3}{2 - \sqrt{7} } }$

$\boxed{\frac{3}{2 - \sqrt{7}} .\frac{2 + \sqrt{7}}{2 + \sqrt{7}} }$

$\boxed{\frac{6 + 3\sqrt{7}}{4 - 7}}$

$\boxed{\boxed{-2-\sqrt{7}}}$