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Questions  >>  CBSE XII  >>  Math  >>  Model Papers
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Using properties of determinants, prove that $ \begin{bmatrix} 2ab & a^2 & b^2 \\ a^2 & b^2 & 2ab \\ b^2 & 2ab & a^2 \end{bmatrix} = -(a^3+b^3)^2$

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