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[" Let "A=[[1,sin theta,1],[-sin theta,1...

[" Let "A=[[1,sin theta,1],[-sin theta,1,sin theta],[-1,-sin theta,1]]" where "0<=theta<=2Pi" ,then "],[" O Det "(A)in(2,4)],[" O Det "(A)=0],[" Det "(A)in[2,4]],[" Det "(A)in(2,oo)]

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