Radical Equation
Source:
June 8, 2009
Problem Statement
If \sqrt{x \minus{} 1} \minus{} \sqrt{x \plus{} 1} \plus{} 1 \equal{} 0, then equals:
(A)\ 5 \qquad
(B)\ 4\sqrt{\minus{}1}\qquad
(C)\ 0\qquad
(D)\ 1\frac{1}{4}\qquad
(E)\ \text{no real value}