View Playlist

Step 1:Derivative Of Sin X And Cos X

The two key functions of oscillation have specially neat derivatives: The slope of sin x is cos x! And the slope of cos x is - sin x. These come from one crucial fact: (sin x) / x approaches 1 at x = 0. This checks that the slope of sin x is cos 0 = 1 at the all-important point x = 0. Professor Strang connects sine and cosine to moving around a circle, or up and down for a spring, or in and out for your lungs.

Add a Comment »

Creator:Krystal Marquez
Source: ocw.mit.edu/high-school/courses/highlights-of-calculus/derivatives-12-videos/derivative-of-sin-x-and-cos-x/
Views: 137

Edit Step
Tweet

Comments

Login to use this feature.