Introducing hyperbolic function through exponent

Description
Differentiating exponential functions by various methods is shown. The rule of differentiating a power is analysed through examples. Revision of general and specific formulas of derivatives are done here. Solutions of few derivative sums are discussed.
Prof. Haynes Miller, Maths,18.01 Single Variable Calculus, Fall 2006: 7: Hyperbolic Functions, Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (Accessed July,6,2011). License: Creative Commons BY-NC-SA:http://ocw.mit.edu/terms/#cc