An arithmetic sequence is represented by the explicit formula A(n) = 2 + 9(n - 1). What is the recursive formula?
Question 7 options:
A(n) = A(n - 1) - 2
A(n) = A(n - 1) + 2
A(n) = A(n - 1) - 9
A(n) = A(n - 1) + 9
Answers
Answered by
3
A(n)=A(n-1)+2 since A(n)=d+A(n-1)
Answered by
1
A(n)= 2+ 9(n-1)
A(n)=9n-7
A(n-1)=9n-16
=(9n-7)-9
=A(n) - 9
the result is A(n-1)=A(n)-9
A(n)=9n-7
A(n-1)=9n-16
=(9n-7)-9
=A(n) - 9
the result is A(n-1)=A(n)-9
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