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reviewed on July 25, 2018
this is the best course for permutation and combination s ever on unacademy platform. truely you have gave an absolute perfect understanding about this topic . I am so thankful to you. you made my JEE prep great!!!! keep on going sir..
reviewed on August 13, 2018
Thank you sir for this course. My Basic concept are good now , this is all because if you sir.