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CHECK!!!+ math

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hi here is my question: what is the general term of the following series?
60/121,-30/11,15, 165/2......

my answer I am debating between two ansers!:
1) (60/121) X (-11/2)^n

2) (-120/1331) X (-11/2)^n

I belive the second one is right am I right? thanks!

I don't think either is correct, but 1) is closer. It should look like
For n=1 you should get the first term.
Why is the second term negative, but not the fourth one, is that a typo?


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