Question

Vă rog mult!!!!!!!!!!!!!!!​

Answer 1

Răspuns:

A=

$( \frac{1}{2 \sqrt{3} } + \frac{3}{4 \sqrt{3} } - \frac{5}{6 \sqrt{3} } ) \times \frac{3 \sqrt{3} }{10}$

$( \frac{6}{12 \sqrt{3} } + \frac{9}{12 \sqrt{3} } - \frac{10}{12 \sqrt{3} } ) \times \frac{3 \sqrt{3} }{10}$

$\frac{5}{12 \sqrt{3} } \times \frac{3 \sqrt{3} }{10}$

$\frac{1}{8}$