If x is negative, which of the following must be positive ?
I. x^2
II. (-1) x
III. 1/x
Choose the correct answer
A) I only
B) I and II only
C) I and III only
D) II and III only
E) I, II, and III
x=-ve   I. x^2   will be positive   II. (-1) x   =-ve*-ve= +ve   will be positive   III. 1/x   =1/-ve =-ve   will be negative   Answer I and II only
<result>B</result>
If x is negative, which of the following must be positive ?
I. x^2
II. (-1) x
III. 1/x