Consider the four long diagonals of the cube, as pictured right. Check the following two facts (“check” can mean a formal proof or a detailed argument about why it’s true): Any symmetry of the cube permutes the long diagonals Any permutation of the long diagonals gives a symmetry of the cube. E.g., what symmetry of the cube sends blue to red? The permutations of the four diagonals corresponds to a symmetric group. Which one? How do you know?
Consider the four long diagonals of the cube, as pictured right. Check the following two facts (“check” can mean a formal proof or a detailed argument about why it’s true): Any symmetry of the cube permutes the long diagonals Any permutation of the long diagonals gives a symmetry of the cube. E.g., what symmetry of the cube sends blue to red? The permutations of the four diagonals corresponds to a symmetric group. Which one? How do you know?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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- Consider the four long diagonals of the cube, as pictured right. Check the following two facts (“check” can mean a formal proof or a detailed argument about why it’s true):
- Any symmetry of the cube permutes the long diagonals
- Any permutation of the long diagonals gives a symmetry of the cube. E.g., what symmetry of the cube sends blue to red?
- The permutations of the four diagonals corresponds to a symmetric group. Which one? How do you know?
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