Question

Me ajudem nessa pfv

Answer 1

Resposta:

está na explicação

Explicação passo-a-passo:

$\frac{1}{\sqrt{12} }.\frac{\sqrt{12} }{\sqrt{12} }=\frac{\sqrt{12} }{\sqrt{12}^2}=\frac{\sqrt{12} }{12}=\frac{\sqrt{3.4} }{12}=\frac{\sqrt{4}. \sqrt{3} }{12}=\frac{2\sqrt{3}}{12}=\frac{\sqrt{3} }{6}$

$\frac{3}{\sqrt{7} }.\frac{\sqrt{7} }{\sqrt{7} }=\frac{3\sqrt{7} }{(\sqrt{7})^2}=\frac{3\sqrt{7}}{7}$

$\frac{2}{\sqrt{2} }.\frac{\sqrt{2}}{\sqrt{2}}=\frac{2\sqrt{2}}{(\sqrt{2})^2}=\frac{2\sqrt{2}}{2}=\sqrt{2}$

$\frac{17}{\sqrt{17} }.\frac{\sqrt{17}}{\sqrt{17}}=\frac{17\sqrt{17}}{(\sqrt{17})^2}=\frac{17\sqrt{2}}{17}=\sqrt{17}$