Mathematics, 28.11.2021 18:10 jessicaisbaehood
The first, third and ninth terms of an A. P are the three terms of a G. P. If the seventh term of the A. P is 19, calculate
i. the 20th term of the A. P
ii. the sum of the first twelve terms of the G. P ( leave your answer in index form )
Answers: 3
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The first, third and ninth terms of an A. P are the three terms of a G. P. If the seventh term of th...
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