Question

Cum se rezolva 1+2+3+........2016 sau 1+2+3+4+.......2016 care ma ajuta are coroana

Answer 1

1 + 2 + 3 + .... + n = n(n +1)/2
In cazul tau n = 2016
Deci suma = 2016 x 2017 / 2= 1008 x 2017 = 2033136

Answer 2

S=1+2+3+...+2016
Aplicăm Suma lui Gauss
  S= $\frac{2016 * 2017}{2}$
S= $\frac{4064256}{2}$
S=2032128