mgutierrez2459studen mgutierrez2459studen
  • 11-02-2021
  • Mathematics
contestada

Find the sum of the first 48 terms of the following series, to the nearest integer.
5,9,13,...???

Respuesta :

mixedbbgife mixedbbgife
  • 11-02-2021

Step-by-step explanation:

∑k=150(3k+2)

First find a1 and a50 :

a1=3(1)+2=5a20=3(50)+2=152

Then find the sum:

Sk=k(a1 + ak)2S50=50(5 + 152)2=3925

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