For the eigenvalue problem y.4/ y D 0; y.0/ D y0 .0/ D 0 D
Chapter , Problem 21(choose chapter or problem)
For the eigenvalue problem y.4/ y D 0; y.0/ D y0 .0/ D 0 D y.L/ D y00.L/ corresponding to a fixed=hinged beam, show that the nth eigenvalue is n D 4 n=L4, where fng 1 1 are the positive roots of the equation tanh x D tan x.
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