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[" if "a,b,c,d>0;x in R" and "(a^(2)+b^(...

[" if "a,b,c,d>0;x in R" and "(a^(2)+b^(2)+c^(2))x^(2)-2(ab+bc+cd)x+b^(2)+c^(2)+d^(2)<=0," then "],[[33,14,log_(10)a],[65,27,log_(10)b],[97,40,log_(10)c]],[[" (A) "1," (B) "-1," (C) "log_(10)(abc)," (D) "]]

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