The solution of the following partial differential equation \(\dfrac{ – McqOptions

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1.	The solution of the following partial differential equation \(\dfrac{\partial^2 u}{\partial x^2}=9 \dfrac{\partial^2 u}{\partial y^2}\) is
A.	sin (3x - y)
B.	3x2 + y2
C.	sin (3x - 3y)
D.	(3y2 - x2)
Answer» B. 3x2 + y2

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