Răspunsuri

2014-10-04T12:01:47+03:00
2+4+6+8+10+12+..........+2014=2(1+2+3+...+1007)=2(1007X1008:2)=1015056
2014-10-04T12:05:26+03:00
2(1+2+3+...+1007)=2(1007X1008:2)=1015056

cred ca asa se ezlova nu ma prea pricep cu din astea