The integrating factor (I.F.) of the linear differential equation dy/dx + Py = Q is given by:
The integrating factor (I.F.) of the linear differential equation dy/dx + Py = Q is given by:
- A. e^(∫Q dx)
- B. e^(∫P dy)
- C. e^(∫P dx)
- D. e^(∫Q dy)
Answer: C) e^(∫P dx)
Explanation: By definition, for a first-order linear differential equation in y, dy/dx + Py = Q, the integrating factor is e^(∫P dx).
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