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Let A=|[1,sintheta,1],[-sintheta,1,sinth...

Let `A=|[1,sintheta,1],[-sintheta,1,sintheta],[-1,-sintheta,1]|,` where `0lt=thetalt=2pi`. Then

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Let A=|[1,sintheta,1],[-sintheta,1,sintheta],[-1,-sintheta,1]|, where 0lt=thetalt=2pidot Then (a) D e t(A)=0 (b) D e t(A) in (2,oo) (c) D e t(A) in (2,4) (d) D e t(A) in [2,4]

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