1.

What is the order of the non-homogeneous partial differential equation,\(\frac{∂^2 u}{∂x^2}+(\frac{∂^2 u}{∂x∂y})^2+\frac{∂^2 u}{∂y^2}=x^2+y^2\)?

A. Order-3
B. Order-2
C. Order-0
D. Order-1
Answer» C. Order-0


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