[線代] eigenvalue
if a, b, c, d, e are all the eigenvalues of the matrix
[ 4 -1 0 0 0]
[-1 3 -1 0 0]
[ 0 -1 3 -1 0]
[ 0 0 -1 3 -1]
[ 0 0 0 -1 3]
then a^2 + b^2 + c^2 + d^2 + e^2 = ?
請問這題除了暴力法
還有別的方法嗎?
謝謝
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