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For a linear equation dx/dy + P1 x = Q1, what must P1 and Q1 be?
AConstants or functions of y
BConstants or functions of x
CEqual to each other always
DFunctions of dx/dy alone
Answer & Solution
Correct answer: A. Constants or functions of y
When x is the dependent variable, the coefficients may depend on y alone, and the integrating factor uses an integral in y.
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