Respondido

Racionalizando
[tex] \frac{12}{ \sqrt{8} } [/tex]
teremos:

a)
[tex]3. \sqrt{8} \\ 2[/tex]
b)
[tex]6. \sqrt{8} \\ 5[/tex]
c)
[tex]12. \sqrt{8} [/tex]

d)
[tex]3. \sqrt{2} \\ 8[/tex]

​

Resposta :

CYBERKIRITOGO

[tex]\boxed{\begin{array}{l}\sf\dfrac{12}{\sqrt{8}} =\dfrac{12\sqrt{8}}{8}\\\sf =\dfrac{\diagup\!\!\! 4\cdot3\cdot\diagup\!\!\!\!2\sqrt{2}}{\diagup\!\!\!\!4\cdot\diagup\!\!\!\!2}\\\sf=3\sqrt{2}\end{array}}\blue{\checkmark}[/tex]

Go Course: Outras perguntas