Determinants bingo

Exercise and reference answers

Clues and terms

1. Clue

   Single number tied to a square matrix.

   Item

   Determinant

2. Clue

   The only kind that has a determinant.

   Item

   Square matrix

3. Clue

   Working a determinant out along a row.

   Item

   Expansion

4. Clue

   Determinant left after deleting a row and column.

   Item

   Minor

5. Clue

   A minor carrying a plus or minus sign.

   Item

   Cofactor

6. Clue

   Matrix built from all the cofactors.

   Item

   Adjoint

7. Clue

   Matrix whose determinant is zero.

   Item

   Singular

8. Clue

   What a non-singular matrix always is.

   Item

   Invertible

9. Clue

   Points whose triangle has zero area.

   Item

   Collinear

Instructions

Read each clue and tap the term it describes.

Explanation