thelittleislandco thelittleislandco
  • 14-07-2020
  • Mathematics
contestada

What is the sum of the series represented by:

What is the sum of the series represented by class=

Respuesta :

devishri1977
devishri1977 devishri1977
  • 14-07-2020

Answer:

70

Step-by-step explanation:

n =2  ;  3n + 2 = 3*2 + 2 = 6 + 2  = 8

n = 3 ; 3n + 2 = 3*3 + 2 = 9 + 2 = 11

n =4 ; 3n+ 2   = 3*4 + 2 = 12 + 2 = 14

n= 5;   3n +2 = 3*5 + 2  = 15 + 2 = 17

n = 6; 3n + 2 = 3*6 + 2 = 18 + 2 = 20

∑ (3n + 2) = 8 + 11 + 14 + 17 + 20 = 70

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