Question

racionalize 7/raiz de 7× 2

Answer 1

$\frac{7}{2 \sqrt{7} } = \frac{7}{2 \sqrt{7} } \frac{ \sqrt{7} }{ \sqrt{7} } = \frac{7 \sqrt{7} }{2.7} = \frac{ \sqrt{7} }{2}$