[tex]map = \frac{(2 \times \frac{1}{2} + 3 \times \frac{2}{3} + 4 \times \frac{3}{4} )}{(2 + 3 + 4)} = \frac{( \frac{2}{2} + \frac{6}{3} + \frac{12}{4} )}{10} = \frac{(12 + 24 + 36)}{12} = \frac{(36 + 36)}{12} = \frac{72}{12} = 6 \\ map = 6[/tex]
sper ca te-am ajutat
