A) \[x>y\Rightarrow -x>-y\]
B) \[x>y\Rightarrow -x<-y\]
C) \[x>y\Rightarrow \frac{1}{x}>\frac{1}{y}\]
D) \[x>y\Rightarrow \frac{1}{x}<\frac{-1}{y}\]
Correct Answer: B
Solution :
We have, \[x\]and y are positive real numbers. \[\therefore \]\[x>y\Rightarrow -x<-y\]and \[x>y\Rightarrow \frac{1}{x}<\frac{1}{y}\]You need to login to perform this action.
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