logan894151 logan894151
  • 29-10-2019
  • Mathematics
contestada

What is the sum of the first eight terms of the geometric
series 2 + 6 + 18 +54 +- ?

Respuesta :

BwarkKing
BwarkKing BwarkKing
  • 29-10-2019

Answer: 6560

Step-by-step explanation:

By using the recursive formula, you find that the common difference is 3.

By continuing this pattern 8 times, you get the sequence 2, 6, 18, 54, 162, 486, 1458, 4374...

By adding all of these together, you get 6560.

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