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Math Help - Sequence Problem

  1. #1
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    Sequence Problem

    Find an for this sequence:
    7, 5, 7, 5, 7, 5, ...
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  2. #2
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    Quote Originally Posted by bearej50 View Post
    Find an for this sequence:
    7, 5, 7, 5, 7, 5, ...
    Surely it must be 7 or 5...
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  3. #3
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    Hello, bearej50!

    \text{Find }a_n\text{ for this sequence: }\;7, 5, 7, 5, 7, 5,\:\hdots

    . . a_n \;=\;6 - (-1)^n

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