Carefully prove that (x, y) T =| x | + 2 | x y

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Carefully prove that ΙΙ (x, y)ΙΙ =| x | + 2 | x − y |defines a norm on R2.

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Applied Linear Algebra

ISBN: 9783319910406

2nd Edition

Authors: Peter J. Olver, Chehrzad Shakiban

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