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[" 32) In any triangle ABC,the value of ...

[" 32) In any triangle ABC,the value of "],[" a "(b^(2)+c^(2))cos A+b(c^(2)+a^(2))cos B+c(a^(2)+b^(2))cos C" is "],[" A) "3ab^(2)c],[" B) "3abc],[" C) "3a^(2)bc],[" D) "3abc^(2)]

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