UPPCL AE 2018:81

Question

The value of $\dfrac{|x|}{x}$ at $x= 0$ is:

• A. Infinity
• B. Not defined
• C. $1$
• D. $0$

Comments

it will be limit value i think

Answer 1

B.not defined

Left hand limit!=right hand limit

Left hand limit =-1 .   -x/x.    If x<0

 

Right hand limit=1. x/x.     If x>0