Question

Suma lui Gauss cu numerele naturale 12, 25, 100, 48, 51, 83, 64, 77, 15, 62. Va rog frumos ajutati-ma!

Answer 1

S= 1+2+3+....12= 12*13/2= 78
S= 1+2+3+....25= 25*26/2= 325
S=1+2+3+ ..100= 100*101 /2= 5050
S= 1+2+3+...48= 48*49/2= 1176
S=1+2+3+...51= 51*52/2=1326
S=1+2+3+...83=83*84/2=3486
S=1+2+3+..+64=64*65/2=2080
S=1+2+3+...+77=77*78/2=3003
S=1+2+3+...+15=15*16/2= 120
S=1+2+3+...+ 62=62*63/2=1953