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The value of |[yz, z x,x y],[ p,2q,3r],[...

The value of `|[yz, z x,x y],[ p,2q,3r],[1, 1, 1]|` , where `x ,y ,z` are respectively, pth, `(2q)`th, and `(3r)`th terms of an H.P. is a.`-1` b. `0` c. `1` d. none of these

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