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Sum of a geometric series
Equation:




Example:




Questions
Find the sum of:

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HWatkins2000

may I have a model answer to Q. the third term of a geometric progression is 16 and the fourth term is 12.8 find the common ratio and the first term

the sum of the first n terms of a geometric progression is 2^(2n+1) -2

find the first term and the common ratio

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