Question

$\frac{2}{\sqrt{81} } - \frac{\sqrt{16} }{3}$ a)$\frac{10}{9}$ b)$-\frac{10}{9}$ c)$\frac{14}{9}$ d)$-\frac{14}{9}$

Answer 1

Oie, Td Bom?!

■ Resposta: Opção B.

$\frac{2}{ \sqrt{81} } - \frac{ \sqrt{16} }{3} = \frac{2}{9} - \frac{4}{3} = \frac{2 - 12}{9} = - \frac{10}{9}$

Att. Makaveli1996