MathDB
Evaluating function with imaginary value

Source: 1970 AHSME Problem 5

March 20, 2014
functionAMC

Problem Statement

If f(x)=x4+x2x+1f(x)=\dfrac{x^4+x^2}{x+1}, then f(i)f(i), where i=1i=\sqrt{-1}, is equal to:
<spanclass=latexbold>(A)</span>1+i<spanclass=latexbold>(B)</span>1<spanclass=latexbold>(C)</span>1<spanclass=latexbold>(D)</span>0<spanclass=latexbold>(E)</span>1i<span class='latex-bold'>(A) </span>1+i\qquad<span class='latex-bold'>(B) </span>1\qquad<span class='latex-bold'>(C) </span>-1\qquad<span class='latex-bold'>(D) </span>0\qquad <span class='latex-bold'>(E) </span>-1-i