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)
Alka gupta
I attached the solution... please check
but how are we doing these steps ??
it is formula for parameterized surface
when u will do complete study of this topic then it is automatically clear to u how we r doing steps
if u satisfied then mark it as a best solution