SOLUTION: Write the sigma notation for the series 800-1200+1800-2700+4050

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Question 1027486: Write the sigma notation for the series 800-1200+1800-2700+4050

Answer by fractalier(6550)   (Show Source): You can put this solution on YOUR website!
Okay...I do not know how to do sigma notation here, but I can describe it to you...
Notice the first term is 800 and each succeeding term is multiplied by -3/2...
So I would write
The SIGMA, as n goes from n=1 to n=5, of 800*(-3/2)^(n-1)

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