The first, the fifth and the seventh terms of another Arithmetic sequence forms a decreasing geometric progression. If the first terms of the geometric progression is...

The first, the fifth and the seventh terms of another Arithmetic sequence forms a decreasing geometric progression. If
the first terms of the geometric progression is 64.
(i) find the values of the common differenced of AP.
(ii) find the first sum of the first ten terms of the G.P.

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sharon kalunda answered the question on May 2, 2019 at 10:48

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