Question

Me ajudem!!!!!!
Racionalize

Answer 1

Racionalizando 5/√3:

(5/√3)*(√3/√3) = 5√3/√9 = 5√3/3

Racionalizando 3/³√7:

(3/³√7) /(³√7²/³√7²) = (3.³√7²)/(³√7³) = (3.³√49)/7

Answer 2

Oie, Td Bom?!

I.

$= \frac{5}{ \sqrt{3} }$

$= \frac{5}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} }$

$= \frac{5 \sqrt{3} }{ \sqrt{3} \sqrt{3} }$

$= \frac{5 \sqrt{3} }{3}$

II.

$= \frac{3}{ \sqrt[3]{7} }$

$= \frac{3}{ \sqrt[3]{7} } \times \frac{ \sqrt[3]{7 {}^{2} } }{ \sqrt[3]{7 {}^{2} } }$

$= \frac{3 \sqrt[3]{7 {}^{2} } }{ \sqrt[3]{7} \sqrt[3]{7 {}^{2} } }$

$= \frac{3 \sqrt[3]{49} }{ \sqrt[3]{7 \times 7 {}^{2} } }$

$= \frac{3 \sqrt[3]{49} }{ \sqrt[3]{7 {}^{3} } }$

$= \frac{3 \sqrt[3]{49} }{7}$

Att. Makaveli1996