Toronto Math Forum

MAT244-2018S => MAT244--Lectures => Topic started by: Jason Jun on February 12, 2018, 05:38:04 PM

Title: Exact Equation
Post by: Jason Jun on February 12, 2018, 05:38:04 PM

When choosing M and N, does it matter which equation we set M and N as?

For example: (2y-x)y' + (6x-y) = 0

  Can we set M = 2y-x or M = 6x-y and N = 6x-y or N = 2y-x ?

Title: Re: Exact Equation
Post by: Nikki Mai on February 12, 2018, 10:18:53 PM

set M=6x-y and N=2y-x.
The general form of exact equation is M(x, y)+N(x, y)y'=0

Title: Re: Exact Equation
Post by: Borui Zhang on April 04, 2018, 04:36:30 AM

M=6x-y and N=2y-x.