A cube has four diagonals. Show that no two of them are perpendicular.

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Linear Algebra A Modern Introduction

ISBN: 978-1285463247

4th edition

Authors: David Poole

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Question Posted: Apr 15, 2016 05:52 AM

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A cube has four diagonals. Show that no two of them are perpendicular.

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As in Example 122 the dimensions of the cube do not matter so we work with a cub...View the full answer

Linear Algebra A Modern Introduction

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