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The first term of a geometric progression is 1, the third term is 4. Find the second term. Is your answer the only possible one?

 

 

 

Find all possible values:

Guest Sep 17, 2017
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1, 2, 4... ( x2)

1, -2, 4 ... (x -2)

there could be more but the definate answer is that there is more than one way to solve this question. 

Guest Sep 17, 2017

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