Write a Formula for the General Term (The Nth Term) $4 , - \frac { 4 } { 3 } , \frac { 4 } { 9 } , - \frac { 4 } { 27 } , \frac { 4 } { 81 } , \ldots$

question 223

Multiple Choice

Write a formula for the general term (the nth term) of the geometric sequence.
- $4 , - \frac { 4 } { 3 } , \frac { 4 } { 9 } , - \frac { 4 } { 27 } , \frac { 4 } { 81 } , \ldots$

• A) \(a _ { n } = 4 \left( - \frac { 1 } { 3 } \right)^{ n - 1}\)
• B) \(a _ { n } = 4 \left( - \frac { 1 } { 3 } \right) ^n\)
• C) \(a _ { n } = 4 \left( - \frac { 1 } { 3 } \right)^{ n + 1}\)
• D) \(a _ { n } = 4 \left( - \frac { 1 } { 9 } \right) ^ { n - 1 }\)

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