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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Mahak
in this integral property used is change of integration .. but this topic is not required for iit jam physics
it has been asked in iit jam GP
yahh it was asked previously but now from last 5,6 years sylabbus has been revised so it's not there
but still if you want to do you can follow hk dass or krezig
this has been asked in JAM so please answer with detailed solution