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Home  >>  CBSE XII  >>  Math  >>  Model Papers

using properties of determinants, prove that $ \begin{vmatrix} -bc & b^2+bc & c^2+bc \\ a^2+ac & -ac & c^2+ac \\ a^2+ab & b^2+ab & -ab \end{vmatrix} = (ab+bc+ca)^2 $

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