Question

Calcule


A)√49/9=
B)√0,0064=
C)900/400=
D)√0,0064=

Answer 1

$a)\ \sqrt{\frac{49}{9}} =\frac{\sqrt{49}}{\sqrt{9}}= \frac{7}{3} \\ \\b) \sqrt{0,0064} =\sqrt{\frac{64}{10000}} =\frac{\sqrt{64}}{\sqrt{10000}}= \frac{8^{:4}}{100_{:4}}= \frac{2}{25} \\ \\c)\ \sqrt{ \frac{900}{400}}=\frac{\sqrt{900}}{\sqrt{400}}= \frac{30^{:10}}{20_{:10}}= \frac{3}{2}$