Question

which word best describes this formula for the sequence $a_n$?
$a_n = -2\left(-\frac{5}{9}\
ight)^{n + 3} + 3$
\boxed{explicit} \boxed{recursive}

Explanation:

An explicit sequence formula directly defines the nth term \(a_n\) using only the index \(n\), without needing prior terms. This formula calculates \(a_n\) solely from \(n\), while recursive formulas depend on previous terms in the sequence.

Answer:

explicit