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3 March, 14:21

Use the following recursive formula to answer the question.

a1=-3/2

an=an-1+1/2

What is a9?

+3
Answers (1)
  1. 3 March, 16:54
    0
    2 1/2

    Step-by-step explanation:

    Each term is 1/2 added to the previous term. The first term is - 3/2, so the first 9 terms of the sequence are ...

    -3/2, - 1, - 1/2, 0, 1/2, 1, 1 1/2, 2, 2 1/2

    a9 is 2 1/2.
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