A Recursion Formula and the Initial Term(s) of a Sequence $a _ { 1 } = 3 , a _ { n + 1 } = \frac { ( - 1 ) ^ { n + 1 } } { a _ { n } }$

question 358

Multiple Choice

A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.
- $a _ { 1 } = 3 , a _ { n + 1 } = \frac { ( - 1 ) ^ { n + 1 } } { a _ { n } }$

• A) \(3 , \frac { 1 } { 3 } , - 3 , - \frac { 1 } { 3 } , 3\)
• B) \(3 , - \frac { 1 } { 3 } , - 3 , \frac { 1 } { 3 } , 3\)
• C) \(- 3 , \frac { 1 } { 3 } , 3 , - \frac { 1 } { 3 } , - 3\)
• D) \(3 , - \frac { 1 } { 3 } , 3 , - \frac { 1 } { 3 } , 3\)

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