Question 3 How do we determine if a differential equation M(x, y)da + N(x, y)dy = 0 is an exact differential equation? A differential equation is exact if: әM aN Әx ду әM ƏN ду Әх әм ду = 0 and әм дх - = = 0 and - ON ду Submit Question ƏN Әх = 0 = 0

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