The sum of the first 14 terms of an arithmetic sequence is 406. If the sum...
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The sum of the first 14 terms of an arithmetic sequence is 406. If the sum of the 4th term and the 5th term is 34, find: 1. the first term and the common difference of the sequence, 2. the sum of the first 20 terms of the sequence. The sum of the first 14 terms of an arithmetic sequence is 406. If the sum of the 4th term and the 5th term is 34, find: 1. the first term and the common difference of the sequence, 2. the sum of the first 20 terms of the sequence.
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SolutionA5 Gtigen Sum of ficst 14 term s 406 ie 14991d4... View the full answer
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