# Orthogonal Matrix

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Verify that

P= 2/3 -2/3 1/3

2/3 1/3 -2/3

1/3 2/3 2/3

is orthogonal matrix.

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##### Solution Summary

The orthoganality of a matrix is proven. The solution is well presented.

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Verify that

P= 2/3 -2/3 1/3 | 2 -2 1 |

2/3 1/3 -2/3 = | 2 1 -2 | *1/3

1/3 2/3 2/3 | 1 2 2 |

is ...

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