Question

1 calcule
$\sqrt{ \frac{81}{144} }$
e assinale a alternativa correta

(A)
$\frac{9}{11}$
(B)
$\frac{ - 9}{12}$
(C)
$\frac{9}{9}$
(D)
$\frac{9}{12}$
​

Answer 1

Oie, Tudo Bom?

■ Resposta: Opção D.

$\sqrt{ \frac{81}{144} } = \frac{ \sqrt{81} }{ \sqrt{144} } = \frac{ \sqrt{9 {}^{2} } }{ \sqrt{12 {}^{2} } } = \boxed { \frac{9}{12} }$

Att. Makaveli1996