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

User Khalilos
by
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1 Answer

3 votes

Answer:

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

the sum is −398,580

User Shabeer K
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