ok i've done this proof before, its pretty simple but i cant seem to do it now, and i have an exam tomorrow......

how do you show that Av.Au=v.u where A is an orthogonal matrix and u and v are vectors,

thanks for any help

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- May 9th 2010, 11:00 AMhmmmmOrthogonal matrices
ok i've done this proof before, its pretty simple but i cant seem to do it now, and i have an exam tomorrow......

how do you show that Av.Au=v.u where A is an orthogonal matrix and u and v are vectors,

thanks for any help - May 9th 2010, 06:54 PMtonio
- May 9th 2010, 11:00 PMhmmmm
thanks very much!