Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1 Best Answer
see attached proof left hand derivative and right hand derivative not equal , so not differentiable at 0
if any doubt then ask
left hand derivative and right hand derivative not equal , so not differentiable at 0