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)
Piyush pachauri
Ans is 0. If f(x) has 2 roots in interval it implies f'(x) has atleast 1 root in interval which is not possible.