Question

Given the arithmetic sequence an = 3 + 2(n − 1), what is the domain for n?

A. All integers where n ≥ 0
B. All real numbers
C. All integers where n ≤ 1
D. All integers where n ≥ 1

Answer 1

$a_n=3+2(n-1)\\\\n\in\mathbb{N^+}\\\\Answer:\ D.\text{All integers where}\ n\geq1$

Answer 2

All numbers greater or equal to 1