Question

racionalize os denominadores 10÷ raiz de 2

Answer 1

10/√2 . √2/√2
10 √2 / (√2)²
10√2/ 2
5√2

Answer 2

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