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)
Priyadarshan Choursiya
you done right. it may be possible answer is misprinted. or it may be possible they doesn't take y >= 0.
Okay but it's question number 19 of IIT JAM 2018 and none of the options match my answer. Is it possible ?
you done right. for more details you can visit https://www.math24.net/volume-solid-of-revolution-disks-washers/. it may be possible that this question will bonus or if u are studying from some coaching notes, so it may be printing mistake