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Which word best describes this formula for the sequence ana_n?\newlinean=8an2+5an3+6an4a_n = -8a_{n - 2} + 5a_{n - 3} + 6a_{n - 4}\newlineChoices:\newline(A)explicit\newline(B)recursive

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Q. Which word best describes this formula for the sequence ana_n?\newlinean=8an2+5an3+6an4a_n = -8a_{n - 2} + 5a_{n - 3} + 6a_{n - 4}\newlineChoices:\newline(A)explicit\newline(B)recursive
  1. Examine Formula: Look at the formula: an=8an2+5an3+6an4a_n = -8a_{n-2} + 5a_{n-3} + 6a_{n-4}. Does it use previous terms of the sequence to find the nnth term? Yes, it uses an2a_{n-2}, an3a_{n-3}, and an4a_{n-4}.
  2. Implicit vs Explicit: Since the formula uses previous terms, it's not explicit. Explicit formulas calculate the nnth term without using previous terms.
  3. Recursion Defined: The formula is recursive because it defines each term using previous terms in the sequence.

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