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{{2^(-1/2),0 ,-2^(-1/2)},{0 , 1 ,0},{2^(-1/2),0 ,2^(-1/2)}} * {{ 0 , -1 , 0},{1,0,0},{0,0,1}} * {{2^(-1/2) , 0,2^(-1/2)},{0,1,0},{-2^(-1/2) , 0,2^(-1/2) }}
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