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What is the formula for the general term of the arithmetic sequence 1, 5, 9, 13, …?
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3 votes
What is the formula for the general term of the arithmetic sequence 1, 5, 9, 13, …?

User Sepehrom
by
8.3k points

1 Answer

7 votes
The formula is

a(n) = a(n-1) + 4 .

But to completely describe the sequence you've given,
these specifications also need to be stated:

a(1) = 1
and
n > 1 .
User Djenny
by
7.7k points
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