Răspuns:
a)x=[tex]\sqrt5-2\sqrt{3}[/tex]; y= [tex]3\sqrt{3} +\sqrt{5}[/tex];
z=[tex]3\sqrt{5} +2\sqrt{3}[/tex]
b)x=[tex]-2\sqrt7 -\sqrt{3}[/tex]; y=[tex]-\sqrt{7} +2\sqrt{3}[/tex];
z=[tex]-\sqrt{3} -4\sqrt{7}[/tex]
c) x=[tex]-4\sqrt{3} +2\sqrt{2}[/tex]; y=[tex]-2\sqrt{2} +2\sqrt{3}[/tex];
z=[tex]2\sqrt{2} - 3\sqrt{3}[/tex]
Explicație pas cu pas:
