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Published byTore Dahl Modified over 5 years ago
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Warm Up Use summation notation to write the series for the specified number of terms. …; n = 7
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Answer Use summation notation to write the series for the specified number of terms. …; n = 7
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Convergent and Divergent Series
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What will happen to the terms of this sequence as it continues forever?
It approaches 0!
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Convergent Sequence A sequence is converging if its terms approach 0. *Only applies to geometric sequences.
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Determine if the following sequences are convergent or divergent:
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Sum of an Infinite Geometric Series
We can find the sum of this series, even though it goes on forever, because it is convergent.
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Sum of an Infinite Geometric Series
The following conditions must be true to use this formula: The series must be geometric The series must be convergent The series must be infinite
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Example 1 Determine whether each infinite geometric series diverges or converges. If it converges, find the sum. a) … b) …
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Example 2 Evaluate each infinite geometric series a) b)
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Formula Recap Sequence Series Arithmetic Geometric Finite Infinite
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