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3 September, 07:01

3,7,11,15 ... what's the recursive formula?

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  1. 3 September, 07:29
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    Well it depends, if you're talking about an arithmetic sequence for the recursive formula, then it would be "aₙ=aₙ₋₁+d" but if you're talking about a geometric sequence, then it would be "aₙ=aₙ₋₁ (r)"
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