Question

racionalize o denominador 7/√7

Answer 1

7/√7= 7√7/√7.√7
=7√7/ 7
=√7

Answer 2

$\frac{7}{ \sqrt{7} } * \frac{ \sqrt{7} }{ \sqrt{7} } \\ \\ \frac{7 \sqrt{7} }{49} \\ \\ \frac{ \sqrt{7} }{7}$

BONS ESTUDOS!