Question

urgent va rog dau coroana!!​

Answer 1

Răspuns:

Explicație pas cu pas:

4 + 2√2 + 2*(1 - √2) = 4 + 2√2 + 2 - 2√2 = 6

media aritmetica = 6 : 2 = 3

Answer 2

$\displaystyle m_a=\frac{a+b}{2} \\\\ m_a=\frac{4+2\sqrt{2} +2(1-\sqrt{2} )}{2} =\frac{4+2\sqrt{2}+2-2\sqrt{2} }{2} =\frac{4+2}{2} =\frac{6}{2} =3~~~\boxed{d}$