Civil Engineering > GATE 2025 SET-1 > Partial Differential Equations
Which of the following equations belong/belongs to the class of second-order, linear, homogeneous partial differential equations:
A
&partial;2u/&partial;t2 = c2(&partial;2u/&partial;x2+&partial;2u/&partial;y2)+xy
B
&partial;2u/&partial;x2+&partial;2u/&partial;y2+&partial;2u/&partial;z2=0
C
(&partial;2u/&partial;t2)2=c2&partial;2u/&partial;x2
D
&partial;2u/&partial;x2 + &partial;u/&partial;y = 0

Correct : b

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