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Find an Explicit Rule for the Nth Term of the Sequence

Question 111

Multiple Choice

Find an explicit rule for the nth term of the sequence.
- 3,−12,48,−192,…3 , - 12,48 , - 192 , \ldots


A) an=3⋅4n+1a _ { n } = 3 \cdot 4 ^ { n + 1 }
B) an=3⋅(−4) n−1a _ { n } = 3 \cdot ( - 4 ) ^ { n - 1 }
C) an=3⋅(−4) na _ { n } = 3 \cdot ( - 4 ) ^ { n }
D) an=3⋅4n−1a _ { n } = 3 \cdot 4 ^ { n - 1 }

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