SOLUTION: prove that a/p + a + ap + ... + ap^n = (a-ap^n+2)/(p-p^2)

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Question 842121: prove that a/p + a + ap + ... + ap^n = (a-ap^n+2)/(p-p^2)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Hint : What if you multiply both sides by p.
The left hand side would look like,
sum%28ap%5En%2Cn=0%2Cinfinity%29
That looks familiar.