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What is the sum of the first five terms of the geometric series 2 − 8 + 32 − S5 = −410 S5 = 410 S5 = 512 S5 = 682

What is the sum of the first five terms of the geometric series 2 − 8 + 32 − S5 = −410 S5 = 410 S5 = 512 S5 = 682
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What is the sum of the first five terms of the geometric series 2 − 8 + 32 −

S5 = −410
S5 = 410
S5 = 512
S5 = 682

asked
User Sathya Baman
by
8.7k points

1 Answer

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Answer:

∑ (n = 1 to 5) (2·(-4)^(n - 1))

S5 = 2·((-4)^5 - 1)/((-4) - 1) = 410


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User Buffalo
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