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Consider the arithmetic sequence where the 12th term is 41 and the 4th term is 1. a. Find the formula of the nthterm of the sequence. b. Find the sum of the first 20 terms.

Consider the arithmetic sequence where the 12th term is 41 and the 4th term is 1. a. Find the formula of the nthterm of the sequence. b. Find the sum of the first 20 terms.
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Consider the arithmetic sequence where the 12th term is 41 and the 4th term is 1. a. Find the formula of the nthterm of the sequence. b. Find the sum of the first 20 terms.

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User Steppefox
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The common difference is 6. The first term is x−d=37−6=31.
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User Tylisha
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