Multiple Choice Questions on If A and A2 ndash kA ndash I2 O where I2 is the 2 x 2 identity matrix then what is the value of k ........ for NDA Exam Preparation

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Multiple Choice Questions

If A and A2 ndash kA ndash I2 O where I2 is the 2 x 2 identity matrix then what is the value of k ........

Mathematics (NDA) Matrices and Determinants
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    If A=\begin{bmatrix} 1 & 2\\ 2 & 3 \end{bmatrix} and A2-– kA – I2 = O, where I2 is the 2 x 2 identity matrix, then what is the value of k?

    4

    Correct Answer

    -4

    Incorrect Answer

    8

    Incorrect Answer

    -8

    Incorrect Answer
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    Explanation:

    A2 - I2 =kA

    => k=4

    By: Munesh Kumari
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