Question

Eu preciso urgente. Que responder correto todas as questão ganha 15 pontos e melhor resposta.​

Answer 1

Resposta:

Explicação passo-a-passo:

$a) \frac{1}{\sqrt{2}}.\frac{\sqrt{2}}{\sqrt{2}}=\frac{\sqrt{2}}{2}$

$b) \frac{\sqrt{3} }{\sqrt{10}}.\frac{\sqrt{10} }{\sqrt{10} }=\frac{\sqrt{30} }{10}$

$c) \frac{30}{7\sqrt{10} }.\frac{\sqrt{10} }{\sqrt{10} } =\frac{30\sqrt{10} }{70}=\frac{3\sqrt{10} }{7}$

$d) \frac{6}{\sqrt{6} } .\frac{\sqrt{6} }{\sqrt{6} }=\frac{6\sqrt{6} }{6} =\sqrt{6}$

$e) \frac{21}{2\sqrt{7} }.\frac{\sqrt{7} }{\sqrt{7} } =\frac{21\sqrt{7} }{14} =\frac{3\sqrt{7} }{2}$

$f) \frac{5\sqrt{2} }{2\sqrt{5} } .\frac{\sqrt{5} }{\sqrt{5} }=\frac{5\sqrt{10} }{10}=\frac{\sqrt{10} }{2}$

$g) \frac{12}{\sqrt{3} }.\frac{\sqrt{3} }{\sqrt{3} } =\frac{12\sqrt{3} }{3} =4\sqrt{3}$

$h) \frac{1}{2\sqrt{3}}.\frac{\sqrt{3} }{\sqrt{3} } =\frac{\sqrt{3} }{6}$

$i) \frac{9\sqrt{2} }{2\sqrt{3} } .\frac{\sqrt{3} }{\sqrt{3} }=\frac{9\sqrt{6} }{6}=\frac{3\sqrt{6} }{2}$

$j) \frac{5}{\sqrt{20} }.\frac{\sqrt{20} }{\sqrt{20} }=\frac{5\sqrt{20} }{20}=\frac{\sqrt{20} }{4}$

$l) \frac{10}{3\sqrt{5} }=\frac{\sqrt{5} }{\sqrt{5} } =\frac{10\sqrt{5} }{15}=\frac{2\sqrt{5} }{3}$

$m) \frac{7\sqrt{3} }{2\sqrt{7} } .\frac{\sqrt{7} }{\sqrt{7} }=\frac{7\sqrt{21} }{14 }=\frac{\sqrt{21} }{2}$