This concept is explained concisely by IITian Faculty.
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Shirish sir please tell us BEST BOOKS FOR IIT JEE.
thank you very much sir
thank you sir I like a lot the way you explain
undoubtedly India's best online academy for JEE
Sir if possible give us videos on just questions and in the questions it self bring out concepts, that way we'll get both benefits to know and learn better and even solve awesome questions. and you all will create a sensation amongst youngsters! you'all rock! thankyou for shaping us so awesomely!
really the best online video for prep
Earlier I did this question by a long method but this method is better and less time consuming, Thank You.