If b is greater than 1 , which of the following must be negative? Pick.
A) (2 - b)(b - 1)	B) (b - 1)/3b	C) (1 - b)^2	D) (2 - b)/(1 - b)	E) (1 - b^2)/b
To be -ive, we should remember it should not be zero apart from being positive...   C will always be 0 or positive..   A and D will be zero at b=2..   B will always be positive..   left is E, where the numerator will always be negative and denominator, a positive..   ans (1 - b^2)/b
<result>E</result>
If b is greater than 1 , which of the following must be negative?