Question

rationalizeaza 4 pe 2 radical din 5-3radicali din 2
?

Answer 1

 $\frac{4}{2\sqrt5-3\sqrt2}=\frac{4\cdot({2\sqrt5+3\sqrt2)}}{(2\sqrt5-3\sqrt2)(2\sqrt5+3\sqrt2)}=\frac{4\cdot(2\sqrt5+3\sqrt2)}{20-18}=2(2\sqrt5+3\sqrt2)$

Apasa tasta F5 !