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)
Swapnajit das
You are obviously right. because here, (f-g)'x = cosx - 1, we know that -1≤cosx ≤1. So , it must be a monotonically decreasing function