Derivatives of ln y and sin ^-1 (y) | Derivatives (12 videos) | Highlights of Calculus | MIT OpenCou
Make a chain of a function and its inverse: f^-1(f(x)) = x starts with x and ends with x. Take the slope using the Chain Rule. On the right side the slope of x is 1. Chain Rule: dx/dy dy/dx = 1 Here this says that df^-1/dy times df/dx equals 1. So the der...