Find the sum of the first 12 terms of geometric sequence 3,-9,27-81,243

asked Jan 19, 2023 80.5k views

25 votes

4.6k points

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3 votes

Answer:

3, -9, 27,-81,243,-729,2187,-6561,19683,-59049,177147,-531441

the sum is −398,580

Shabeer K answered Jan 23, 2023

4.8k points

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