Hello My Dear Students , I am Amarjit Rout Completed B.Tech in Mechanical Engineering a. I know its very simple introduction about me but i want to tell you all one thing my profound knowledge on Physics and M ath,my passion to give you light of knowledge in a so simple way will make you fall in love with Derivatives at an opposite force equal to your love for Movies or......... ....... ........ Thank You Regards, Amarjit Rout + more - less