👤

calculati suma; 7+14+21+......3157



Răspuns :

7(1+2+3+........+451)

Faci Gauss
451*452/2=
101926

Iar rez va fi
7*101926=713482
7(1+2+3+........+451)


451*452/2=
101926


7*101926=713482