SOLUTION: Hello I need help solving a geometric sequence, I need to find S20 for the series -1 + -3 + -5 + -7. And if possible I'd love to see the steps into solving this problem for future
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Sequences-and-series
-> SOLUTION: Hello I need help solving a geometric sequence, I need to find S20 for the series -1 + -3 + -5 + -7. And if possible I'd love to see the steps into solving this problem for future
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Question 1089458: Hello I need help solving a geometric sequence, I need to find S20 for the series -1 + -3 + -5 + -7. And if possible I'd love to see the steps into solving this problem for future reference. Answer by ikleyn(52847) (Show Source):
