Question

clasa a x-a
Sa se calculeze:
a) √784/√1225=
b) ∛-125/∛-64

Answer 1

$a)\, \, \frac{ \sqrt{784}}{ \sqrt{1225}}= \sqrt{ \frac{784}{1225}} = \sqrt{ \frac{112}{175}}=\sqrt{ \frac{16}{25}}= \frac{4}{5}$

$b)\,\,\frac{ \sqrt[3]{-125} }{ \sqrt[3]{-64}}= \sqrt[3]{ \frac{-125}{-64}}=\sqrt[3]{ \frac{125}{64}}= \frac{5}{4}$