3.2 Higher Order Partial Derivatives
www.ucl.ac.uk › ~ucahmdl › LessonPlansChain Rule for Second Order Partial Derivatives To find second order partials, we can use the same techniques as first order partials, but with more care and patience! Example. Let z = z(u,v) u = x2y v = 3x+2y 1. Find ∂2z ∂y2. Solution: We will first find ∂2z ∂y2. ∂z ∂y = ∂z ∂u ∂u ∂y + ∂z ∂v ∂v ∂y = x2 ∂z ∂u +2 ∂z ∂v.