Răspunsuri

2014-08-30T19:39:02+03:00
lg 1/2+lg 2/3+...+lg 9/10=lg(1/2*2/3*3/4*4/5*5/6*6/7*7/8*8/9*9/10)=lg(1/10)=lg10^(-1)=-lg10=-1
lg=logaritm in baza 10 lg10=1
Multumesc mult,dar nu inteleg de unde ti-a dat lg(1/10)?
fiindca fractiile din interiorul parantezei se reduc .
Aha,am inteles.Multumes!
Multumesc*