Răspunsuri

2014-03-15T00:53:23+02:00
X(1/2+2/3+3/4+........+99/100)=99
x(99/100·100/100 :2)=99       
x·99/50=99
x=99:99/50
x=99·50/99
x=50
Sper sa intelegi.