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Matrices and Determinants question

2024 · 4 Apr · Shift 2 · Q49
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Matrices and Determinants question

2024 · 4 Apr · Shift 2 · Q49

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
Let A=[1201]A=\left[\begin{array}{ll}1 & 2 \\ 0 & 1\end{array}\right]A=[10​21​] and B=I+adj⁡(A)+(adj⁡A)2+…+(adj⁡A)10B=I+\operatorname{adj}(A)+(\operatorname{adj} A)^2+\ldots+(\operatorname{adj} A)^{10}B=I+adj(A)+(adjA)2+…+(adjA)10. Then, the sum of all the elements of the matrix BBB is:
  1. A
    −-− 110
  2. B
    22
  3. C
    −-− 124
  4. D
    −-− 88
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