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

  • question_answer
    If \[f(x)={{x}^{2}}+4x-5\] and \[A=\left[ \begin{matrix} 1 & 2  \\ 4 & -3  \\ \end{matrix} \right],\] then the sum of all elements of \[f(A)\] is equal to

    Answer:

    20


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