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Asked by Anonymous666_2

For the geometric sequence, -100,50,-25,12.5, find the next two terms and the general term.
9 years ago

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Answered by Steve
the common ratio can be found by dividing any term by the previous one.

clearly r = -1/2

So, Tn = -100 (-1/2)^(n-1) = 200/(-2)^n
9 years ago

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