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chacha8876

  • 4 years ago

An arithmetic sequence is represented by the explicit formula A(n) = 2 + 9(n - 1). What is the recursive formula? A. A(n) = A(n - 1) + 2 B. A(n) = A(n - 1) + 9 C. A(n) = A(n - 1) - 9 D. A(n) = A(n - 1) - 2

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  1. Zarkon
    • 4 years ago
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    \[A(n) = 2 + 9(n - 1)\] \[=2 + 9(n - 2+1)\] \[=2 + 9(n - 2)+9\] \[=A(n-1)+9\]

  2. chacha8876
    • 4 years ago
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    tnks

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