If x = -|x|, then which one of the following statements could be true?
I. x=0
II. x < 0
III. x > 0
A). none
B). I only
C). III only
D). I and II
E). II and III
Answer: D
Given x = - |x|
We know that |x| >= 0
=> -|x| = x <=0
Thus inequalities represented by I and II
Thursday, October 16, 2008
Subscribe to:
Posts (Atom)