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1970 AMC 12 Question 5

AMC12 · 1970 AMC 12

Question 5

If $f(x)=\dfrac{x^4+x^2}{x+1},$ then $f(i),$ where $i=\sqrt{-1},$ is equal to:
  1. $1+i$
  2. $1$
  3. $-1$
  4. $0$
  5. $-1-i$