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Eigen value [closed]

+6 votes
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closed as a duplicate of: Gate ECE 2017 Eigen Value
asked in Linear Algebra by Boss (41.8k points)
closed by | 168 views
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1 Answer

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Every row sum equals $15$, so $15$ is an eigenvalue.
answered by (21 points)
0
Nope

This is not actual procedure
0
What do you mean by a actual procedure?

 If you try to expand $det(A-\lambda I )$ then we see  this matrix has four complex eigenvalues (but this is so long)

My answers shows $Ax=15x$ with $x=(1,1,1...,1)^T$

Are  you know this fact? : In a square matrix A with every row sum equals k, then k is an eigenvalue of A

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