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8 August, 02:18

Shane is trying to find the 5th term of a sequence where f (1) = 4 and f (n) = 2*f (n-1) + 1 for each whole number greater than one. He reasons that he can find the 5th term by calculating (4*2*2*2*2) + 1. Explain Shane's error

Note I am doing this for Shane not me

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  1. 8 August, 05:45
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    Just try to explain that by solving this in order, you can get the answer. Look:

    f (2) = 9

    f (3) = 19

    f (4) = 39

    f (5) = 79
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