The Murder Mystery Method to Solve Exact Differential Equations
The Murder Mystery Method to Solve Exact Differential Equations
The Murder Mystery Method to Solve Exact Differential Equations
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Example 2: Final Solution <strong>Solve</strong>: (y+x)dx+(y)dy=0Witness M: Witness N:∫2x( y + x) dx = xy +2( y)2y∫ dy = 2<strong>The</strong> clue that contains the two variables (xy) was seen only by one of thetwo witnesses: <strong>The</strong>refore we do not trust them, and we do not have ourmurdererThis equation is Nonexact, it has <strong>to</strong> be solved by anothermethod