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2006 AMC 12B Question 1

AMC12 · 2006 AMC 12B

Question 1

What is $$
(-1)^1 + (-1)^2 + \cdots + (-1)^{2006}?
$$
  1. $-2006$
  2. $-1$
  3. $0$
  4. $1$
  5. $2006$