Răspunsuri

  • Utilizator Brainly
2014-11-16T11:46:24+02:00
(4+8+12+....+2004):(2+4+6+....+1002) = 2(2+4+.....+1002):(2+4+6+....+1002) =2
2014-11-16T11:47:21+02:00
   4*1+4*2+4*3+...+4*501
4(1+2+3+...+501)
4*501*502/2=2*501*502
   2*1+2*2+2*3+2*501
2(1+2++3+...+501)
2*501*502/2= 501*502
Deci avem 2*501*502/ 501*502= 2