Mastering Matrices and Determinants in Business Mathematics
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Questions and Answers

Which one of these is a type of matrix?

  • Exponential Matrix
  • Quadratic Matrix
  • Linear Matrix
  • Zero or Null Matrix (correct)

    • What is the inverse of a matrix?

  • A matrix with all elements equal to zero
  • A matrix that when multiplied with the original matrix gives a zero matrix
  • A matrix that when multiplied with the original matrix gives the identity matrix (correct)
  • A matrix with all elements equal to one

    • How can the solution system of linear equations be evaluated using Cramer's rule?

  • By finding the inverse of the coefficient matrix
  • By finding the determinant of the coefficient matrix (correct)
  • By adding the coefficient matrix with the solution matrix
  • By multiplying the coefficient matrix with the solution matrix

    • Which one of these is a property of determinants?

    <p>Determinant of a matrix is always zero</p> Signup and view all the answers

    What is the rank of a matrix?

    <p>The number of non-zero rows in the matrix</p> Signup and view all the answers

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