SOLUTION: find the sum of the first five terms in the geometric series -3/2+1-2/3+... A. 55/54 B. -55/54 C. 55/27 D. -55/27 Thank you so much!!!! God Bless and Happy New Year!!!!

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Question 389445: find the sum of the first five terms in the geometric series -3/2+1-2/3+...
A. 55/54
B. -55/54
C. 55/27
D. -55/27
Thank you so much!!!!
God Bless and Happy New Year!!!!

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi,
geometric series -3/2, 1,-2/3,+...
In this example r = -2/3


-3/2 + 1 + -2/3 + 4/9 - 8/27 = ( -81 + 54 - 36 + 24 - 16) /54 = -55/54
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