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For dy/dx + Py = Q, the integrating factor is which expression?
Ae^(integral of P dx)
Be^(integral of Q dx)
Cintegral of P dx
Dproduct of P and Q
Answer & Solution
Correct answer: A. e^(integral of P dx)
Multiplying by e^(integral of P dx) turns the left side into the derivative of y times that factor.
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