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)
Priyanshu kumar
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hello sir thank you but, i have one doubt that if I multiply matrix b with identity matrix i will get the same matrix b. not anything . i think i understand till A×A inverse. then after i think is not right, please check