Find a General Term A_n for the Geometric Sequence $\frac { 1 } { 2 } , 2,8 , \ldots$

question 312

Multiple Choice

Find a general term a_n for the geometric sequence.
- $\frac { 1 } { 2 } , 2,8 , \ldots$

• A) \(a _ { n } = \frac { 1 } { 2 } + \frac { 3 } { 2 } ( n - 1 )\)
• B) \(a _ { n } = \frac { 1 } { 2 } + 4 ( n - 1 )\)
• C) \(a _ { n } = \left( \frac { 1 } { 2 } \right) ^ { n - 1 } + \frac { 3 } { 2 }\)
• D) \(a _ { n } = \frac { 1 } { 2 } ( 4 ) ^ { n - 1 }\)

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