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Mathematics, 19.12.2020 14:00 ckolliegbo
The third term of an arithmetic sequence is-8, and the sum of the first 10 terms of the sequence is -230. Find:
a. the first term of the sequence.
b. the sum of the first 13 terms.
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The third term of an arithmetic sequence is-8, and the sum of the first 10 terms of the sequence is...
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