Question
Reduce the following PDE into three ODEs:
Answer :
Word Count : 108
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Skip in 10
Assume a separable solution ( f(x,y,z)=X(x)Y(y)Z(z) ). Then [ \frac{\partial^2 f}{\partial x^2}=X''YZ,\quad \frac{\partial^2 f}{\partial y^2}=XY''Z,\quad \frac{\partial^2 f}{\partial z^2}=XYZ''. ] Substituting into [ \left(\frac{\partial^2}{\partial x^2}+\frac{\partial^2}{\partial y^2}+\frac{\partial^2}{\partial
__________ __________ ______ ___ _________ ___ _____ _______ ______ ____ ___._________ ___ _____ ____ __________ ____ ____ ________ _____ _________ ________ __________.
_________ __________ _____ __________ ___ ________ ________ ________.
________ _____ ____ _________ _________ __________ ___ _____ ________ _________ __________.
_______ _________ __________ ______ _____ __________ ______.
_____ ______ _____ ________ _____ ____ ________ _______ ______.
______ ___ _____ __________ ____ ______ __________ _______ ________ ________ ______.
__________ _______ ____ _____ _______ ___ _______ ________.
______ ______ ______ _________ ____ ___.
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