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What is the sum of the first 27 terms of the geometric sequence -3, 3, - 3, 3, . . . ?

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Geometric mean of 15 and 60 = sqrt(15*60) = sqrt(900) = 30

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Wiki User

15y ago
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30

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Jalon Huels

Lvl 1
3y ago
how do you know that

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Kaila Ayesha

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3y ago
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Q: What is the geometric mean of 15 and 60 is?
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