Question

find the eigenvalues and eigenfunctions for the given boundary-value problem. y'' + (lambda)y = 0, y(-pi)=0,...

find the eigenvalues and eigenfunctions for the given boundary-value problem.

y'' + (lambda)y = 0, y(-pi)=0, y(pi)=0

Please explain where alpha = (2n+1)/2 comes from in the lambda>0 case. Thank you!!

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