Determine whether the series: 25^-n+2 . 16^n+1converges or diverges. If it converges then find its sum

Can I have some hints in solving this question..(Doh)

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- January 28th 2009, 07:42 PMAngel RoxConverging or Diverging...??
Determine whether the series: 25^-n+2 . 16^n+1converges or diverges. If it converges then find its sum

Can I have some hints in solving this question..(Doh) - January 28th 2009, 09:07 PMmr fantastic