Răspunsuri

2014-08-16T21:00:17+03:00
N=(2014-4):5 +1

n=2010:5 +1

n= 402 +1

n=403 de termeni sunt in suma

S= (4+2014)*403/2

S=2018 *403/2

S=1009 *403

S=406 627
3 4 3