Find the indicated term(s) of the given sequence.
-The general term of the sequence $- 3,9 , - 27,81 , \ldots$
A) $a _ { n } = ( - 1 ) ^ { n } 3 ^ { n }$
B) $a _ { n } = 3 ^ { n }$
C) $a _ { n } = 3 ^ { n + 1 }$
D) $a _ { n } = ( - 1 ) ^ { n + 1 } 3 ^ { n + 1 }$

Question

Quizplus · Accepted Answer

The general term of the sequence is $a _ { n } = ( - 1 ) ^ { n } 3 ^ { n }$ because the sequence alternates between multiplying by 3 and -3.

Find the Indicated Term(s) of the Given Sequence −3,9,−27,81,…- 3,9 , - 27,81 , \ldots−3,9,−27,81,…

Find the Indicated Term(s) of the Given Sequence $- 3,9 , - 27,81 , \ldots$