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Matrices and Determinants question

2022 · 29 Jul · Shift 1 · Q27
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Matrices and Determinants question

2022 · 29 Jul · Shift 1 · Q27

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
Let A and B be two 3×33 \times 33×3 non-zero real matrices such that AB is a zero matrix. Then
  1. A
    the system of linear equations AX=0A X=0AX=0 has a unique solution
  2. B
    the system of linear equations AX=0A X=0AX=0 has infinitely many solutions
  3. C
    B is an invertible matrix
  4. D
    adj⁡(A)\operatorname{adj}(\mathrm{A})adj(A) is an invertible matrix
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