Explicație pas cu pas:
[tex]3.(3) = \frac{33 - 3} {9} = \frac{30}{9} = \frac{10}{3} =3.3 \\ mg = \sqrt{a \times b} \\ \sqrt{2.4 \times 3.3} = \sqrt{ \frac{24}{10} } \times \frac{10}{3} = \sqrt{ \frac{240}{30} } = \sqrt{8} [/tex]
[tex] \sqrt{8} = 2 \sqrt{2} [/tex]
