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[" Let "(:D_(1),D_(2),D_(3),.......D_(n)}" be the set of third order determinant that can be made with the "],[" distinct non-zero real numbers "a_(1),a_(2)......a_(n)" (using all),then "],[" 1."sum_(i=1)^(n)D_(i)=1quad " 2."sum_(D_(i)=0)^(n)" .3."D_(i)=D_(i),AA i,jquad " 4.None of these "]

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