Find the first term in the arithmetic sequence __, 8 1/3, 7, 5 2/3, 4 1/3, ...

Emmy Swanson 2022-10-14 Answered
Find the first term in the arithmetic sequence __, 8 1/3, 7, 5 2/3, 4 1/3, ...
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Answers (1)

Alannah Yang
Answered 2022-10-15 Author has 22 answers
the common difference d of the sequence is
x d = a 2 - a 1 = a 3 - a 2 = a 4 - a 3
d = 7 - 8 1 3 = 5 2 3 - 7 = - 4 3
a 1 = a 2 - d = 8 1 3 - ( - 4 3 ) = 29 3 = 9 2 3
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