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If the sum of the first three terms of a geometric progression is 14 and the common ratio is 2, what is the first term?

Practice Questions

1 question
Q1
If the sum of the first three terms of a geometric progression is 14 and the common ratio is 2, what is the first term?
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Questions & Step-by-step Solutions

1 item
Q
Q: If the sum of the first three terms of a geometric progression is 14 and the common ratio is 2, what is the first term?
Solution: Let the first term be a. The sum of the first three terms is a + 2a + 4a = 7a. Setting 7a = 14 gives a = 2.
Steps: 0

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