Question

Simplifique os radicais:

A)√7



9

= C) √

8

=

B) √3

15

D) √ ,



10

=​

Answer 1

a)

$\sqrt{ \frac{7}{9} } = \frac{ \sqrt{7} }{ \sqrt{9} } = \frac{ \sqrt{7} }{3}$

b)

$\sqrt{ \frac{3}{15} } = \frac{ \sqrt{3} }{ \sqrt{15} } = \frac{ \sqrt{3} }{ \sqrt{3.5} } \\ \\ = \frac{ \sqrt{3} }{ \sqrt{3} . \sqrt{5} } = \frac{1}{ \sqrt{5} }$

c)

$\sqrt{8} = \sqrt{4.2} = \sqrt{4} . \sqrt{2} = 2 \sqrt{2}$

d)

$\sqrt{0,10} = \sqrt{ \frac{10}{100} } = \sqrt{ \frac{1}{10} } \\ \\ = \frac{ \sqrt{1} }{ \sqrt{10} } = \frac{1}{ \sqrt{10} }$