Find the sum of the first 6 terms of the sequence defined by an = -7 (-4)n-1 for n ≥ 1 O 28 O 1911 5733 -2810

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Q: Find the sum of the first 6 terms of the sequence defined by an = -7 (-4)n-1 for n 2 1 5733 O 28 O -…

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