Which of the following is not a homogeneous equation? – McqOptions

MCQOPTIONS

1.	Which of the following is not a homogeneous equation?
A.	( frac{ ^2 u}{ t^2}-c^2 frac{ ^2 u}{ x^2}=0 )
B.	( frac{ ^2 u}{ x^2}+ frac{ ^2 u}{ y^2}=0 )
C.	( frac{ ^2 u}{ x^2}+( frac{ ^2 u}{ x y})^2+ frac{ ^2 u}{ y^2}=x^2+y^2 )
D.	( frac{ u}{ t} -T frac{ ^2 u}{ x^2}=0 )
Answer» D. ( frac{ u}{ t} -T frac{ ^2 u}{ x^2}=0 )

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