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College Algebra & Trigonometry, 2018a

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290 CHAPTER 6. SEQUENCES AND SERIES<br />

Is there a common multiplier? If so, then this should be a power function where<br />

a particular base is being raised to the power of n.<br />

Example: {3, 15, 75, 375, ...}<br />

a n =3∗ 5 n−1<br />

or<br />

a 1 =3<br />

a n =5∗ a n−1<br />

Other patterns to look for are perfect squares and perfect cubes.

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