Question

racionalize os denominadores
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Answer 1

g)

$\frac{3}{\sqrt{8}}=\frac{3}{\sqrt{8}}  \cdot\frac{\sqrt{8}}\sqrt{8}}=\boxed{\frac{3\sqrt{8}}{8} }$

h)

$\frac{6}{\sqrt{145}}=\frac{6}{\sqrt{145}}\cdot\frac{\sqrt{145}}{\sqrt{145}}=\frac{6\sqrt{145}}{145}=\boxed{\frac{30\sqrt{29}}{145}}$

i)

$?$

j) ∛27 = 3

$\frac{8}{\sqrt[3]{27}}=\boxed{\frac{8}{3}}$

Bons estudos!