Hannah2541 Hannah2541
  • 09-05-2018
  • Mathematics
contestada

Which summation formula represents the series below? 12 – 24 + 48 – 96

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CastleRook
CastleRook CastleRook
  • 18-05-2018
The summation formula for the series given by:
 12 – 24 + 48 – 96
will be calculated as follows:
first term,a=12
common ratio=+/-2
thus the sum will be:
(i=1)Σ[12(-2)^(i-1)]

Thus the answer:
(i=1)Σ[12(-2)^(i-1)]
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Idea63
Idea63 Idea63
  • 17-11-2020

Answer: B

Step-by-step explanation:

Ver imagen Idea63
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