Question

Найдите значение выражения даю 20 балов срок 8 часов $\sqrt{2\frac{7}{9}}*\sqrt{7,29}+\sqrt{12 \frac{5}{6}}/\sqrt{1\frac{40}{81} =$

Answer 1

$\sqrt{2\frac{7}{9}}*\sqrt{7,29}+\sqrt{12 \frac{5}{6}}/\sqrt{1\frac{40}{81} }= \sqrt{\frac{25}{9}}*\sqrt{7,29}+\sqrt{ \frac{77}{6}}/\sqrt{\frac{121}{81} }=\\\\=\frac{5}{3}*2.7+9\sqrt{\frac{77}{6}}/11=\frac{99+3\sqrt{462}}{22}$