Geometric Sequences and Series

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Presentation transcript:

Geometric Sequences and Series Ch 8.3 Geometric Sequences and Series

What is the difference between arithmetic and geometric sequences? In a Arithmetic Sequence, the difference of consecutive terms is constant. This difference is called the common difference. In a Geometric Sequence, the ratio of any term to the previous term is constant. This constant ratio is called the common ratio.

Tell whether each sequence is arithmetic, geometric, or neither. A arithmetic B not arithmetic C not geo D geo

What pattern do you notice in this geometric series What pattern do you notice in this geometric series? Could we come up with a formula? 2 , 6, 18, 54, 162….

Pg 228