Răspuns:
[tex]3 \sqrt{2} = \sqrt{ {3}^{2} \times 2} = \sqrt{18} [/tex]
[tex]2 \sqrt{5} = \sqrt{ {2}^{2} \times 5} = \sqrt{20} [/tex]
[tex] = > 3 \sqrt{2} < 2 \sqrt{5} [/tex]