Matrices

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Across
  1. 1. The _____ of a rectangular matrix could be 3 X 4
  2. 6. A rectangular array of numbers enclosed in brackets.
  3. 7. This matrix is called the _____ matrix
  4. 10. Find the value of the x-coordinate in the system:
  5. 12. Find the inverse of the matrix:
  6. 13. EX: Is an example of _____ multiplication
Down
  1. 1. To find the _____ of a 2 X 2 matrix, do
  2. 2. If I multiply 2 matrices and I get the identity matrix, I know the matrices are ______.
  3. 3. Find the determinant of:
  4. 4. One method to solve a system of equations is to use ____ rule
  5. 5. Find the determinant of:
  6. 8. When we switch the rows and columns of a matrix
  7. 9. If the number of rows = the number of columns it is a _____ matrix
  8. 11. Multiply: