The formal adjoint for the given linear differential operator L L [ y ] ( x ) = ( 1 + x 2 ) y ″ ( x ) + 2 x y ′ ( x ) + y ( x ) .

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Chapter 11.4, Problem 3E

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The formal adjoint for the given linear differential operator L L[y](x)=(1+x2)y″(x)+2xy′(x)+y(x).

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