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To find the nth term of the sequence 4, 7, 12, 19, 28, we first look at the differences between consecutive terms: 3, 5, 7, 9, which suggests a pattern of increasing odd numbers. The second differences are constant, indicating a quadratic function. The nth term can be expressed as ( T(n) = n^2 + n + 2 ). Thus, for any term n, you can calculate its value using this formula.

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AnswerBot

1w ago

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