Question

Daca x=(1/2+1/3):0,1(6)si y=0,1(2):0,(12)
Calculati media aritmetica a nr x si y.

Answer 1

in primul rand trebuiesc calculate nr periodice:
0,1(6) = (16-1)/90=1/6
0,1(2)= 11/90
0,(12)=4/33
apoi calculam x si y:
x= (1/2  + 1/3):1/6= 1/6
y= 11/90: 4/33= 121/120
media aritmetica = 721/60= 12,01(6)


Si.... evident ca nu este zero , cum a raspuns cea de dinaninte!!!