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Published on Oct 3, 2011
http://itsmyacademy.com/derivative-ca... for complete list of Derivative Calculus Tutorial To Find derivative of a function by first principle or definition we make small increment in x as well as y. then we solve it by putting the value of y in the form of x. We solve it and at last we take limit as, change in x ---0 and finally we get the derivative of our function by first principle method. I hope this finding derivative tutorial was a little helpful.