# Chapter 11 - 11.3 - Geometric Sequences and Series - 11.3 Exercises - Page 795: 1

geometric common

#### Work Step by Step

The ratio is called the common ratio because: $\frac{a_2}{a_1}=\frac{a_3}{a_2}=\frac{a_4}{a_3}=...=\frac{a_{101}}{a_{100}}=...=r$

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