Răspuns :
Salut!
a = 3-2√2, deoarece modulul unui numar negativ se scrie -(...)
b = 2√2 + 3
√ab = √(3+2√2)(3-2√2) = √9-8 = √1 = 1
[tex]\it 2\sqrt2=\sqrt{2^2\cdot2}=\sqrt{8} < \sqrt9=3\\ \\ 2\sqrt2 < 3 \Rightarrow 2\sqrt2-3 < 0 \Rightarrow |2\sqrt2-3|=-2\sqrt2+3 \Rightarrow a=3-2\sqrt2\\ \\ b=2\sqrt2+3=3+2\sqrt2\\ \\ m_g=\sqrt{a\cdot b}=\sqrt{(3-2\sqrt2)(3+2\sqrt2)}=\sqrt{3^2-(2\sqrt2)^2}=\sqrt{9-8}=1[/tex]