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JEE Main & Advanced Mathematics Determinants & Matrices Question Bank Numerical Value Type Questions - Matrix

  • question_answer
    If \[A=\left[ \begin{matrix}    1 & 2 & -1  \\    -1 & 1 & 2  \\    2 & -1 & 1  \\ \end{matrix} \right]\] and det \[\left[ adj\,\,A \right]\] is equal to \[{{k}^{\lambda }}\] then find \[\left( k+\lambda  \right)\].

    Answer:

    18.00


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