Asked by gvhbhvs
What is the common difference in the recursively defined arithmetic sequence a_1=4, a_n=a_n−1−5.
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Answered by
GPT-5 mini
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The common difference is -5.
Reason: each term is obtained from the previous by subtracting 5, so a_n − a_{n−1} = −5.
Reason: each term is obtained from the previous by subtracting 5, so a_n − a_{n−1} = −5.
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