Va rog!!Urgent!!Dau coroana!!

Răspuns:
AB = 20
BC = 8
AC = AB + BC = 20 + 8 = 28
[tex] \frac{20}{28} + \frac{28}{8} = \\ \\ = \frac{5}{7} + \frac{7}{ 2} = \\ \\ = \frac{10}{14} + \frac{49}{14} = \\ \\ = \frac{59}{14} [/tex]
Succes! ♡︎♥︎♡︎
AC = AB + BC = 20 + 8 = 28
AB/AC +AC/BC = 20/28 + 28/8 = 10/14 +7/2 (amplifici pe 7/2 cu 7)
10/14 + 49/14 = 59/14 = 59/14 = 4,21