Verify that M(theta) is orthogonal, and find a unit vector n such that the line fixed by the reflection is given by the equation(adsbygoogle = window.adsbygoogle || []).push({});

n . x= c,

for a suitable constant c, which should also be determined.

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I did the verficiation part, by multiplying m(theta) by its transpose. But how do I do the 2nd part? (regarding the find a unit vector).

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# Reflection (matrices)

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