huyengabina huyengabina
  • 02-08-2021
  • Computers and Technology
contestada

tinh S(n) = 1+2+3+.....+n

Respuesta :

tonb
tonb tonb
  • 02-08-2021

Answer:

-1/12

Explanation:

[tex]\sum_{k=0}^{k=n} k = \frac{n(n+1)}{2}\\[/tex]

look up the derivation by Srinivasa Ramanujan for a formal proof.

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