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May 22, 2015

Homework Help: maths

Posted by unknown on Monday, June 17, 2013 at 12:51am.

S=1 + 2(1/5) + 3(1/5)^2 + 4(1/5)^3 +5(1/5)^4...........infinite......... If
s=a/b
,
where a and
b are coprime positive integers, what is the
value of a+b?

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