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anonymous

  • one year ago

Which recursive formula can be used to generate the sequence below, where f(1) = 3 and n ≥ 1? 3, –6, 12, –24, 48, … f (n + 1) = –3 f(n ) f (n + 1) = 3 f(n ) f (n + 1) = –2 f(n ) f (n + 1) = 2 f(n)

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  1. DanJS
    • one year ago
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    do you notice the pattern in the numbers?

  2. DanJS
    • one year ago
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    a consecutive term is double the last and oposite sign

  3. DanJS
    • one year ago
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    the next term --- f( n + 1) is --- = -2 times previous term --- -2 * f(n)

  4. DanJS
    • one year ago
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    or since they gave you choices, you can just try each one out to see which works w/o knowing anything

  5. DanJS
    • one year ago
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    the first term f(n) is 3 given to you, put that in each answer choice and see which gives back the next value in the sequence

  6. anonymous
    • one year ago
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    I got -6

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