Răspuns:
a = 1/2 k
b = 1/3 k
c = 1/4 k
1/4 k ^2 + 1/9 k ^ 2 + 1/16 k ^2 = 976
k^2 x (1/4 + 1/9 + 1/16) = 976
k^2 x ( 36 + 16 + 9/144) = 976
k^2 x 61/144 = 976
k^2 x 61 = 976 x 144
k^ 2 = 16 x 144
k = 4 x 12
k= 48
a= 24
b= 16
c= 12
Sper ca te-am ajutat si nu uita de coroana
