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Matrices and Determinants question

2025 · 2 Apr · Shift 2 · Q31
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Matrices and Determinants question

2025 · 2 Apr · Shift 2 · Q31

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
Let AAA be a 3×33 \times 33×3 real matrix such that A2(A−2I)−4(A−I)=OA^2(A-2 I)-4(A-I)=OA2(A−2I)−4(A−I)=O, where III and OOO are the identity and null matrices, respectively. If A5=αA2+βA+γIA^5=\alpha A^2+\beta A+\gamma IA5=αA2+βA+γI, where α,β\alpha, \betaα,β, and γ\gammaγ are real constants, then α+β+γ\alpha+\beta+\gammaα+β+γ is equal to :
  1. A
    76
  2. B
    12
  3. C
    4
  4. D
    20
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