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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyadarshan Choursiya Best Answer
this is another standard form, whenever you see such kind of problem you can solve them by following cases. but according to me you solve these problems by earlier methods which you already know. or as you learn earlier standard forms you have to learn it too, but I say you that you can solve such problems by another methods also. so don't take tension.