The ordinary differential equations satisfied by X ( x ) , Y ( y ) and T ( t ) , when u ( x , y , t ) = X ( x ) Y ( y ) T ( t ) .

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Chapter 10.5, Problem 26P

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The ordinary differential equations satisfied by X(x),Y(y) and T(t), when u(x,y,t)=X(x)Y(y)T(t).

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