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
Orthogonal trajectory is a family of curves that intersect another family of curves at right angles. In case of vertical line (x=0 ), we get horizontal line (y=0) as orthogonal trajectory . which is unique (single trajectory ) .