Question: Linear Elementary Algebra (a) If a matrix has an eigenvalue A = 0, it is not invertible. In your own words, explain why this is

Linear Elementary Algebra

(a) If a matrix has an eigenvalue A = 0, it is not invertible. In your own words, explain why this is the case. (b) Explain in your own words why we can find the eigenvalues for a matrix A by looking at the det (A - XI) = 0

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