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)
Gattu uday
we get the rows 0 1 0 0 , 0 0 1 0 , 0 0 0 0 , 0 0 0 1 but we take any 3×3 matrix to take det