luciantennismaster
luciantennismaster luciantennismaster
  • 23-11-2021
  • Mathematics
contestada

What is the sum of the numbers
1*2+2*3+.....n(n+1)

Respuesta :

surellroberto36 surellroberto36
  • 23-11-2021

Answer:

8+n²+n

Step-by-step explanation:

Simplfy the expression

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