Noeliamuscaflorena9 Noeliamuscaflorena9 27-09-2022 Matematică a fost răspuns S=1+2+3+...+270S=4+8+12+...440S=10+20+30+..1990S=7+14+21+...777S=6+12+18+...420S=8+16+25+...1040 .plss..