A Recursion Formula and the Initial Term(s) of a Sequence $a_{1}=2, a_{n+1}=(-1)^{n} a_{n}$

question 1

Multiple Choice

A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.
- $a_{1}=2, a_{n+1}=(-1) ^{n} a_{n}$

• A) 2, -2, -2, 2, 2
• B) 2, -2, 2, -2, 2
• C) -2, 2, -2, 2, -2
• D) 2, 2, -2, -2, 2

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