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
you can refer these also. https://www.google.com/url?sa=t&source=web&rct=j&url=https://amp.doubtnut.com/question-answer/estimate-the-absolute-value-of-the-integral-int1019sinx-1-x8dx-34302&ved=2ahUKEwjk9Lbj6PLuAhVW9nMBHUwkAzsQFjABegQIAhAC&usg=AOvVaw3WxOaq48_BfRTNSrCMc2Zb&cf=1&cshid=1613630227153 you can ask ur doubt