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Asked by Anonymous

For the orthogonal matrix

A = 1/sqrt(2) -1/sqrt(2)
-1/(sqrt(2)) -1/sqrt(2)

verify that (Ax,Ay)=(x,y) for any vectors x and y in R2.

Can someone please explain this
10 years ago

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Answered by Anonymous
^ btw that matrix has 4 values in it.

10 years ago

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