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3 years ago

13

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 sequ

ence. b. Find the sum of the first 20 terms.

1 answer:

svlad2 [7]3 years ago

3 0

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

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