Math Question
![What is the recursive formula for this geometric sequence?
\[
-3,-21,-147,-1029, \ldots
\]
A. \( \left\{\begin{array}{l}a_{1}=-3 \\ a_{n}=a_{n-1} \cdot 18\end{array}\right. \)
B. \( \left\{\begin{array}{l}a_{1}=-3 \\ a_{n}=a_{n-1} \cdot 7\end{array}\right. \)
C. \( \left\{\begin{array}{l}a_{1}=7 \\ a_{n}=a_{n-1} \cdot(-3)\end{array}\right. \)
D. \( \left\{\begin{array}{l}a_{1}=18 \\ a_{n}=a_{n-1} \cdot(-3)\end{array}\right. \)](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2022/3/21/d53ab62d-99e1-4357-a8bb-deec060cef22.png "What is the recursive formula for this geometric sequence?
\[
-3,-21,-147,-1029, \ldots
\]
A. \( \left\{\begin{array}{l}a_{1}=-3 \\ a_{n}=a_{n-1} \cdot 18\end{array}\right. \)
B. \( \left\{\begin{array}{l}a_{1}=-3 \\ a_{n}=a_{n-1} \cdot 7\end{array}\right. \)
C. \( \left\{\begin{array}{l}a_{1}=7 \\ a_{n}=a_{n-1} \cdot(-3)\end{array}\right. \)
D. \( \left\{\begin{array}{l}a_{1}=18 \\ a_{n}=a_{n-1} \cdot(-3)\end{array}\right. \)")
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