Răspuns :
Media aritmetica = [tex] \frac{a+b}{2} [/tex]
a = 5-√5
b= 5+√5
Ma = [tex] \frac{5- \sqrt{5} + 5 + \sqrt{5} }{2} = \frac{10}{2} = 5[/tex]
a = 5-√5
b= 5+√5
Ma = [tex] \frac{5- \sqrt{5} + 5 + \sqrt{5} }{2} = \frac{10}{2} = 5[/tex]