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)
Priyadarshan Choursiya
this question is based on some information of Descartes rule. (note that if 0 is root then it gives f(0)= 0). for more details visit https://youtu.be/OHaaA2uq5JI see attachment-
thank you so much you are brilliant