SOLUTION: pleases i want to know how i can solve or find the eigenvalues and vectors of a 4x4 matrix

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Question 376422: pleases i want to know how i can solve or find the eigenvalues and vectors of a 4x4 matrix
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%284%2C4%2Ca%2Cb%2Cc%2Cd%2C+e%2Cf%2Cg%2Ch%2C+i%2Cj%2Ck%2Cl%2C+m%2Cn%2Co%2Cp%29%29
Let x be the eigenvalue.
Solve for the determinant of
[A-Ix]=
.
.
.
You will get a fourth degree polynomial whose 4 roots are the eigenvalues.