An 11 X 11 matrix B is called similar to A if there is a nonsingular n X 11 matrix T
Chapter 20, Problem 20.1.104(choose chapter or problem)
\(\operatorname{det} \mathbf{A}=\lambda_{1} \lambda_{2} \cdots \lambda_{n}\)
Both formulas follow from the product representation of the characteristic polynomial, which we denote by \(f(\lambda)\),
\(f(\lambda)=(-1)^{n}\left(\lambda-\lambda_{1}\right)\left(\lambda-\lambda_{2}\right) \cdots\left(\lambda-\lambda_{n}\right) .\)
Text Transcription:
det A = lambda_1, lambda_2 . . . lambda_n
f(lambda)
f(lambda)=(-1)^n(lambda-lambda_1)(lambda-lambda_2)...(lambda-lambda_n).
lambda_1,...,lambda_r(r leqq n)
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