Question

quero resolver essas questoes

a)
$\sqrt{ \frac{25}{9?} }$
b)
$- \sqrt{ \frac{45}{4?} }$
​

Answer 1

a)

$\sqrt{\frac{25}{9}}$

$\sqrt{\frac{5^2}{3^2}}$

$\sqrt{\frac{5}{3}^2}$

$\frac{5}{3}$

b)

$\sqrt{\frac{45}{4}}$

$\sqrt{\frac{9.5}{4}}$

$\sqrt{\frac{3^2}{2^2}.5}$

$\sqrt{\frac{3}{2}^2.5}$

$\frac{3}{2}.\sqrt{5}$