Răspunsuri

Cel mai inteligent răspuns!
2014-10-08T20:16:33+03:00
1+2+3+................1000=(1000 roi 1001):2
=500500
2+       4+      6+............1000=
1000+998+996+............2=
(1002+1002+1002..........+1002) ori 500 termeni
S2= 1002 ori 500
S2=502002000:2
S=251001000

2 4 2