18-20. Evaluating geometric series two ways Evaluate each geomet- ric series two ways. a. Find the nth partial sum S, of the series and evaluate lim S b. Evaluate the series using Theorem 10.7. k=0 THEOREM 10.7 Geometric Series a Let a + 0 and r be real numbers. If |r| < 1, then ark If |r| > 1, k=0 then the series diverges. Diverges rs-1 Converges -1

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Q: Parts A-C

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