Enrichment Activity on Matrices and Determinants

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Across
  1. 3. the transpose of a cofactor matrix of the square matrix
  2. 7. Arrays of numbers or expressions arranged in rows and columns.
  3. 9. the square matrix that is equal to the negative of its transpose matrix
  4. 11. a single numerical value which is used when calculating the inverse or when solving systems of linear equations
  5. 12. a diagonal matrix with all its diagonal elements equal to 1 , and zeroes everywhere else
Down
  1. 1. a matrix that is equal to its transpose.
  2. 2. a matrix in which the entries outside the main diagonal are all zero
  3. 4. a square matrix whose determinant is zero
  4. 5. a square one whose determinant is not zero
  5. 6. Horizontal arrangement of elements in a matrix.
  6. 8. A Matrix which is formed by turning all the rows of a given matrix into columns and vice-versa
  7. 10. a matrix that has an equal number of rows and columns