Răspuns:
[tex]( \frac{2}{5 \sqrt{3} } - \frac{1}{2 \sqrt{3} } - \frac{3}{2 \sqrt{3} } ) \times \frac{ \sqrt{75} }{1} = ( \frac{2 \sqrt{3} }{15} - \frac{ \sqrt{3} }{6} - \frac{3 \sqrt{3} }{6} ) \times \frac{5 \sqrt{3} }{1} = ( \frac{4 \sqrt{3} }{30} - \frac{5 \sqrt{3} }{30} - \frac{15 \sqrt{3} }{30} ) \times \frac{5 \sqrt{3} }{1} = - \frac{16 \sqrt{3} }{30} \times \frac{5 \sqrt{3} }{1} = \frac{48}{6} = 8[/tex]
Coroana te rog
