Asked by John Smith
What is the recursive rule for the sequence?
-7.4, -21.2, -35, -48.8, -62.5
I got an=an+1 -13.8 where a1=-7.4
-7.4, -21.2, -35, -48.8, -62.5
I got an=an+1 -13.8 where a1=-7.4
Answers
Answered by
Arora
Partly correct, it should be a(n) = a(n-1) - 13.8, not a(n) = a(n+1) - 13.8
This is because a(n) is given by subtracting 13.8 from the number *before* it, which is a(n-1)
This is because a(n) is given by subtracting 13.8 from the number *before* it, which is a(n-1)
Answered by
John Smith
THank you Arora. I guess I need to be more careful with formulas
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