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Crazy boy [7]
3 years ago
5

What is the sum of the first five terms of a geometric series with A1 equals 20 and R equals 1/4

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0
Sum = 20(1-(1/4)^5) / (1-1/4) = 26.64
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9514 1404 393

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This is nicely solved by a graphing calculator, which can plot the difference between the functions. The attached shows the maximum difference on the given interval is 38 at x = -3.

__

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