Patrick B. answered • 05/08/20
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A(n) = 4 - (5/2)(n-1)
= 4 - (5/2)n + 5/2
= 13/2 - (5/2)n, n=1,2,3,....
A1=4 and A(n) = A(n-1) - 5/2
Emily F.
asked • 05/08/20arithmetic sequence problem
find a formula for an for the arithmetic sequence:
4, 3/2, -1, -7/2, ....
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