Tuesday, June 14, 2016

calculus - Series - sumii=1nfty(frac512)i - geometric series?



I have to solve - i=1(512)i - geometric series?




The geometric series sequence I know is - i=0xi=11x



However in my assignment, the series starts from i=1.



The solution I have is - i=1(512)i=115121



Can you explain please why is that the solution?


Answer



HINT:

i=0xi=11x=x0+i=1xi


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