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Matrices and Determinants · 2018 · 15 Apr · Shift 1

2 Mathematics questions from this JEE Main paper
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Matrices and Determinants · 2018 · 15 Apr · Shift 1

2 Mathematics questions from this JEE Main paper

  1. Q28.Let S be the set of all real values of k for which the systemof linear equations x + y + z = 2 2x + y − z = 3 3x + 2y + kz = 4 has a unique solution. Then S is :
    Mathematics · Matrices and Determinants · MCQ
  2. Q29.Let A be a matrix such that A.[10​23​] is a scalar matrix and |3A| = 108. Then A2 equals :
    Mathematics · Matrices and Determinants · MCQ