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
it is not possible to explain complete vector space and their properties here.... I suggest you to do study this topic either from any refference book or see this topic on you tube.
kindly suggest YouTube channel