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abstract algebra - Why we need polynomials to prove that $1,a,a^2,\dots , a^{n-1}$ is a field? - Mathematics Stack Exchange
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Theorem 6.1.2 - T is invertible iff the constant term of the minimal polynomial for T is non zero - YouTube
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functional analysis - The spectrum of a polynomial of an operator, question about proof, why are the operators invertible? - Mathematics Stack Exchange
![SOLVED: Let A=[ -2 -4 6 -2 -4 x+9 -1 x+2 2 ]. For what values of x is A invertible? Compute the determinant of A (it will be a polynomial in SOLVED: Let A=[ -2 -4 6 -2 -4 x+9 -1 x+2 2 ]. For what values of x is A invertible? Compute the determinant of A (it will be a polynomial in](https://cdn.numerade.com/ask_images/e1645338df5143bd992b597fc1df8665.png)
SOLVED: Let A=[ -2 -4 6 -2 -4 x+9 -1 x+2 2 ]. For what values of x is A invertible? Compute the determinant of A (it will be a polynomial in
Invertible Ideals and the Strong Two-Generator Property in Some Polynomial Subrings - UNT Digital Library
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