1.

Which of these equations are used to classify PDEs?

A. (b( frac{dy}{dx})-c=0 )
B. (a( frac{dy}{dx})^2-b( frac{dy}{dx})=0 )
C. (( frac{dy}{dx})^2-( frac{dy}{dx})+1=0 )
D. (a( frac{dy}{dx})^2-b( frac{dy}{dx})+c=0 )
Answer» E.


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