[tex]x = ( \frac{15}{5 \sqrt{3} } + \frac{18}{6 \sqrt{3} } + \frac{33}{11 \sqrt{3} } ) \times 5 \sqrt{3} = \frac{9}{ \sqrt{3} } \times 5 \sqrt{3} = 9 \times 5 = 45[/tex]
[tex]y = 2(11 - 9)(3 \sqrt{2} - 3)(3 \sqrt{2} + 3) = 2 \times 2(9 \times 2 - 3) = 2 \times 2(18 - 3) = 2 \times 2 \times 15 = 60[/tex]
La punctul a am aratat mai sus
acum fac punctul b)
[tex]b)45 = \frac{p}{100} \times 60 \\ 45 = \frac{3p}{5} \\ p = 75[/tex]
