Question 932968: What is the 84th term in the sequence -3,3,5,-5,-3...? It doesn't look like an arithmetic sequence so we are not sure how to tackle it.
Answer by KMST(5328) (Show Source):
You can put this solution on YOUR website! The sequence meant is probably -3,3,-5,5,-3,3,-5,5,-3,3,-5,5,.... ,-3,3,-5,5,....
where the same four terms are recycled over, and over again,
so the 4th, 8th, 12th, 16th, ..., 80th, and 84th terms are .
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