Question

va rog frumos, am nevoie ​

Answer 1

Răspuns:

$\frac{7}{ \sqrt{} 24} - \frac{1}{2 \sqrt{54} } = \frac{7}{2 \sqrt{6} } - \frac{1}{6 \sqrt{6} } = \frac{7 \sqrt{6} }{12} - \frac{ \sqrt{6} }{36 } = \frac{5 \sqrt{6} }{9}$