Question

Cat face 1 +2+3+.......+223=?

Suma lui Gaos
Help!!!

Answer 1

Suma lui Gauss:
$1+2+3+...+n= \frac{n(n+1)}{2}$

Aplici formula: 1+2+...+223=223(223+1)/2=24976

Answer 2

pai 1+2+3+.......+223=? aplicam teorema n*(n+1):2 
=1+2+3 +....+223
=223*(223+1):2
=223*224:2
=223*112
=24976
sper ca te-am ajutat!
coroana???