S = 1 + 2 + 3 + 4 + 5 + ?
S = 1 + 2 + 3 + 4 + 5 + . + 79 + 80.
0Veritocordoba
S = 1 + 2 + 3 + 4 + 5 + . + 79 + 80.
En resumen
S = 1 + 2 + 3 + 4 + 5 + 6 + 7 + . 79 + 80 S = 1 + 2 + 3 + 4 + 5 + 6 + 7 + . N = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%28n%2B1%29%7D%7B2%7D%20" /> n = 80 <img src="https://tex.z-dn.net/?
Suleikasornoza
S = 1 + 2 + 3 + 4 + 5 + 6 + 7 + .
79 + 80
S = 1 + 2 + 3 + 4 + 5 + 6 + 7 + .
N = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%28n%2B1%29%7D%7B2%7D%20" />
n = 80
<img src="https://tex.z-dn.net/?f=S%20%3D%20%20%5Cfrac%7Bn%28n%2B1%29%7D%7B2%7D%20%3D%20%20%5Cfrac%7B80%2881%29%7D%7B2%7D%20%20%3D%20%20%5Cfrac%7B6480%7D%7B2%7D%20%3D%203240" />.
Josejuega
Pues la respuesta sale = 3174.