Partitioned Matrices in Linear Systems
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Questions and Answers

What is the representation of the system Ax = b in terms of linear combination?

  • Ax = a1 + a2 +...+ an = b
  • Ax = x1 a1 + x2 a2 +...+ xn an
  • Ax = x1 a1 + x2 a2 +...+ xn an = b (correct)
  • Ax = x1 + x2 +...+ xn = b
  • What does the matrix product Ax represent?

  • A division operation
  • A linear combination of column vectors (correct)
  • An exponentiation operation
  • A linear combination of row vectors
  • When is the system Ax = b considered consistent?

  • When b can be expressed as a linear combination of the column vectors with coefficients as solutions (correct)
  • When there is no solution
  • When b is equal to a single column vector
  • When the linear combination coefficients are irrelevant
  • What does x1 [ a11 a21 ⋮ am1 ] + x2 [ a12 a22 ⋮ am2 ] +...+ xn [ a1n a2n ⋮ amn] represent?

    <p>A linear combination of column vectors</p> Signup and view all the answers

    Which matrices are involved in representing the system Ax = b in a more convenient way?

    <p>[ Coefficient matrix, Unknowns matrix, Right-hand side matrix]</p> Signup and view all the answers

    How is the system Ax = b more conveniently represented using matrices?

    <p>By partitioning the matrices A and x into coefficient, unknowns, and right-hand side matrices</p> Signup and view all the answers

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