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[|A=[[a^(2),ab,ac],[ab,b^(2),bc],[ac,bc,...

[|A=[[a^(2),ab,ac],[ab,b^(2),bc],[ac,bc,c^(2)]]" and "a^(2)+b^(2)+c^(2)-1," fren "A^(2)=],[[" (A) "A,," (B) "2A," (C) "3A," (D) "4A]]

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