Lecture 04 Simplest Non-Exact Equations
www.math.ualberta.ca › ~xinweiyu › 334Linear equations. Fortunately there are many important equations that are exact, unfortunately there are many more that are not. • The simplest non-exact equation. y′ = y or equivalently −y dx +dy=0. (22) We easily check ∂M ∂y = −1 0= ∂N ∂x. (23) • But it can be easily solved! Approach 1: Remember that (ex)′ = ex itself ...