Let . Then equals:
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Let . Then equals:
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Let A=[1 1; 1 3]. Then A⁴-4A³+2A²+A equals: (A) I (the 2× 2 identity matrix) (B) I+A (C) A (D) A⁻¹
Also written as: Let A=[1 1; 1 3]. Then A^4-4A^3+2A^2+A equals:
Matrices, determinants and linear systems has come up 102 times in 7 exams since 2006.
This question is on Matrix identities and Cayley-Hamilton, part of Matrices, determinants and linear systems in Mathematics.
Algebraic results about matrix powers, polynomials and special classes.
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Question from the DSE 2019 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.