Math Problem Statement
If there is a basis x1,...,xn of Rn and numbers λ1,...,λn such that Txi = λixi, prove that T is angle preserving if and only if all |λi| are equal.
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Eigenvalues
Angle-Preserving Transformations
Formulas
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Theorems
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Suitable Grade Level
Undergraduate
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