Question

How to find the function of integral factor

Answer 1

We multiply both sides of the differential equation by the integrating factor I which is defined as I = e∫ P dx. ⇔ Iy = ∫ IQ dx since d dx (Iy) = I dy dx + IPy by the product rule. As both I and Q are functions involving only x in most of the problems you are likely to meet, ∫ IQ dx can usually be found.

Answer 2

Step-by-step explanation:

We multiply both sides of the differential equation by the integrating factor I which is defined as I = e∫ P dx. ⇔ Iy = ∫ IQ dx since d dx (Iy) = I dy dx + IPy by the product rule. As both I and Q are functions involving only x in most of the problems you are likely to meet, ∫ IQ dx can usually be found.

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