Question: For the arithmetic sequence beginning with the terms {-2, 0, 2, 4, 6, 8...), what is the sum of the first 18 terms?

For the arithmetic sequence beginning with the terms {-2, 0, 2, 4,

For the arithmetic sequence beginning with the terms {-2, 0, 2, 4, 6, 8...), what is the sum of the first 18 terms?

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