Răspuns :
4+8+12+.....+288
Nr.termeni:288-4:4+1=71+1=72
288+...+4|+
292+....+292
292x72:2=
=21024:2=
=10512
Nr.termeni:288-4:4+1=71+1=72
288+...+4|+
292+....+292
292x72:2=
=21024:2=
=10512