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7-48.

For parts (a) and (b), write a recursive equation using notation for each sequence. For parts (c) and (d), write an explicit equation using notation for each sequence. (For a reminder about sequence notation, see the Math Notes box in Lesson 5.3.2.) Homework Help ✎

Read Math Notes box in Lesson 5.3.3 on equations for sequences.


  1. Is the sequence arithmetic or geometric?
    Remember to write an explicit equation.

  1. Is the sequence arithmetic or geometric?
    Remember to write an explicit equation.