#1: Determine the general term, tn, for sequence/series 64, -16, 4, -1,...

I have no idea how to do this :(

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- Apr 8th 2010, 10:40 AMneedhelpplease1how to determine the general term
#1: Determine the general term, tn, for sequence/series 64, -16, 4, -1,...

I have no idea how to do this :( - Apr 8th 2010, 10:53 AMmathemagister
- Apr 8th 2010, 10:54 AMharish21
- Apr 8th 2010, 10:58 AMmathemagister
And that translates to $\displaystyle a_n = -(-1)^n 4^{4-n}$

- Apr 8th 2010, 11:07 AMneedhelpplease1hmm..
- Apr 8th 2010, 11:11 AMmathemagister