Question 871940
evaluate the sum 
sigma notation: 
i = 1 
on top of the sigma notation is the number 10
to the right is 1/2(6^i-1)
the whole thing i-1 is ^ 
thank you!!
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sum = (1/2)[6^0+6^1+6^2+...+6^9] 
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Cheers,
Stan H.
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