Răspunsuri

  • Utilizator Brainly
2014-10-06T20:00:32+03:00
Suma lui Gauss : n(n+1):2

4+8+12+............+1996=
4(1+2+3+............+499 )=
499(499+1):2=124750

4(1+2+3+.............1996)=124750*4=499000
  • Reo
  • Începător
2014-10-06T20:21:38+03:00
4+8+12+...+1996=4 x(1+2+3+...499)=4(499x500 :2)=4 x(249500:2)=4 x 125750=499000