W Write The $n$ Th Term of the Geometric Sequence as a Function Of as a Function

question 21

Multiple Choice

W Write the $n$ th term of the geometric sequence as a function of $n$ .
$$a _ { 1 } = 4 , a _ { k + 1 } = 2 a _ { k }$$

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

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