SOLUTION: Sequence: 3, -6, 12, -24, 48,..., find S(sub 20). If S(sub 0)= 3. Then find the sum through S(sub 20). Thank you so much for your time, and everything in helping me understand

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Question 634668: Sequence: 3, -6, 12, -24, 48,..., find S(sub 20). If S(sub 0)= 3. Then find the sum through S(sub 20).
Thank you so much for your time, and everything in helping me understand this problem! Thank you!
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

3, -6, 12, -24, 48,...,   Geometric Series, r  = -2

  

  

 

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