SOLUTION: Simplify 1+a^2+a^3+................+a^n

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Question 6197: Simplify 1+a^2+a^3+................+a^n
Answer by khwang(438) About Me  (Show Source):
You can put this solution on YOUR website!
This is a geometric series with common ratio a,
which sum is equal to
(a^(n+1) -1) /(a-1)


Kenny