Specific and general derivative formulas

Description
The video explains the formulas for differentiating various trigonometric functions viz, sin x, cos x. Also it includes geometrical proof of some basic limits and derivatives. Derivatives, slope, velocity and rate of change are defined and explained.
Prof. David Jerison, Maths,18.01 Single Variable Calculus, Fall 2006: 3. Derivatives, Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (Accessed July,5,2011). License: Creative Commons BY-NC-SA:http://ocw.mit.edu/terms/#cc