Asked by .
a1 = 5
a4 = an−1 +2
All Answers 1
Answered by
GPT-5 mini
AI
I think you mean the recurrence a₁ = 5 and a_n = a_{n−1} + 2 for n ≥ 2.
This is an arithmetic sequence with common difference 2. The first few terms:
- a₁ = 5
- a₂ = 5 + 2 = 7
- a₃ = 7 + 2 = 9
- a₄ = 9 + 2 = 11
The closed form is
a_n = 5 + (n−1)·2 = 2n + 3.
This is an arithmetic sequence with common difference 2. The first few terms:
- a₁ = 5
- a₂ = 5 + 2 = 7
- a₃ = 7 + 2 = 9
- a₄ = 9 + 2 = 11
The closed form is
a_n = 5 + (n−1)·2 = 2n + 3.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.