Question

determine a raizzzzzzzzzzzzzzzzzzzz​

Answer 1

Resposta:

a) 4/25

b) 5/4

Answer 2

Resposta:

a)

$\sqrt{ \frac{16}{25} } = \frac{ \sqrt{16} }{ \sqrt{25} } = \frac{ \sqrt{ {4}^{2} } }{\sqrt{ {5}^{2} } } = \frac{4}{5}$

b)

$- \sqrt{ \frac{25}{4} } = - \frac{ \sqrt{25} }{ \sqrt{4} } = - \frac{ \sqrt{5^{2} } }{ \sqrt{2 ^{2} } } = - \frac{5}{2}$