Question

Racionalize
a) 2/ raiz de 10

2
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√10

Answer 1

  2  .  √10    =   2√10  (:2)   =  √10
√10   √10          10    (:2)          5

Answer 2

$\frac{2}{ \sqrt{10} } \to \\\\\\ \frac{2}{ \sqrt{10} } * \frac{ \sqrt{10} }{ \sqrt{10} } \to \\\\\\ \frac{2 \sqrt{10} }{ \sqrt{100} } \to \\\\\\ \frac{2 \sqrt{10} }{ 10 } \to\\\\\\ \frac{1 \sqrt{10} }{ 5 } \to\\\\\\ \frac{ \sqrt{10} }{ 5 }$