In Exercises 2334, write a formula for the general term (the nth term) of each
Chapter 8, Problem 25(choose chapter or problem)
In Exercises 2334, write a formula for the general term (the nth term) of each arithmetic sequence. Do not use a recursion formula. Then use the formula for an to find a20, the 20th term of the sequence. 7, 3, -1, -5, c
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