Question

5) Daca a=
$5 \sqrt{ 2} - 4 \sqrt{3}$
$\frac{2}{a} este$
Rapid plss​

Answer 1

Explicație pas cu pas:

$\frac{2}{a} = \frac{2}{5 \sqrt{2} - 4 \sqrt{3} } = \frac{2 \sqrt{6} }{5 \times 2 - 4 \times 3 } = \frac{2 \sqrt{6} }{10 - 12} = \frac{ \sqrt{6} }{10 - 6} = \frac{ \sqrt{6} }{4}$