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Matrices and Determinants question

2024 · 9 Apr · Shift 2 · Q44
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Matrices and Determinants question

2024 · 9 Apr · Shift 2 · Q44

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
Let B=[1315]B=\left[\begin{array}{ll}1 & 3 \\ 1 & 5\end{array}\right]B=[11​35​] and AAA be a 2×22 \times 22×2 matrix such that AB−1=A−1A B^{-1}=A^{-1}AB−1=A−1. If BCB−1=AB C B^{-1}=ABCB−1=A and C4+αC2+βI=OC^4+\alpha C^2+\beta I=OC4+αC2+βI=O, then 2β−α2 \beta-\alpha2β−α is equal to
  1. A
    16
  2. B
    10
  3. C
    8
  4. D
    2
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