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)
Satpal singh
https://youtu.be/1rBU0yIyQQ8 see this video . you need to find row reduced echelon form of this matrix. option 1 is correct
what operation you have applied in first part
see this full sequence of operations
thanks