Why we work in Radians when doing Calculus
- Michael Andrejkovics
Have you ever wondered why we insist on working in Radians in Calculus? It's more than just a convenient choice...
You may animate the tangent line to the Sin curve by hitting the "play" button in the lower left hand side of the screen. Alternatively, drag the slider "c" to move the tangent line manually. Notice the slope of the tangent line, and consider how working in degrees (vs. radians) affects the slope of the tangent. Does the familiar identity d/dx sin(x) = cos(x) hold true when working in degrees?