Shoe that the columns of an orthogonal matrix form an orthogonal set of vectors.
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Originally Posted by veronicak5678 Shoe that the columns of an orthogonal matrix form an orthogonal set of vectors. $\displaystyle A\,\,\mbpx{orthogonal }\Longleftrightarrow AA^*=I$ , and watching what this last equality means wrt the matrix's columns (or rows, for that matter) you're done. Tonio
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