Use the eigenfunction solution of the regular Sturm-Liouville problem: dx +ây = 0, y'(0) = y(1) = 0 to find the eigenfunction expansion of f(x)=x over the interval 0sxs 27. Show all possible cases for the eigenvalues. *Note that the eigenfunction expansion is expressed as: f(x)=E«,y. (x) -1 where y, (x) is the eigenfunction of the Sturm-Liouville problem.

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