Multiple Choice Questions on Find the value of lsquo x rsquo if matrix A is singular ........ for NDA Exam Preparation

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Multiple Choice Questions

Find the value of lsquo x rsquo if matrix A is singular ........

Mathematics (NDA) Matrices and Determinants
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    Find the value of ‘ x’ if matrix A is singular:

    \begin{bmatrix} 4 & x &2 \\ 3 & 0 & 2\\ 8& 6 &0 \end{bmatrix}

    -3

    Incorrect Answer

    -3/4

    Correct Answer

    -4/3

    Incorrect Answer

    2/3

    Incorrect Answer
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    Explanation:

           If a matrix is singular then it’s determinant is zero

           Finding determinant=4(0-12)-x(-16)+2(18-0)=0

         -48-16x+36=0

        -16x=12

          X=  -3/4

    By: bhavesh kumar singh
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