Răspuns:
[tex]M_{a} = \frac{4\sqrt{5}+20\sqrt{5} }{2} =\frac{24\sqrt{5} }{2}=\frac{12\sqrt{5} }{1}=12\sqrt{5}\\M_{a} = \frac{13\sqrt{7}+3\sqrt{7} }{2} = \frac{16\sqrt{7} }{2}=\frac{8\sqrt{7} }{1}=8\sqrt{7}\\M_{a} = \frac{8\sqrt{3}+16\sqrt{3} }{2} = \frac{24\sqrt{3} }{2}=\frac{12\sqrt{3} }{1}=12\sqrt{3}[/tex]
Explicație pas cu pas:
Sper ca te-am ajutat!
