Determinants and Inverse Matrix

If A is square matrix of order 3 such that |AdjA| =64 , find |A|

• 64

• 8

• 4

• 192

When you multiply a matrix by the inverse matrix, you obtain the

• inverse matrix.

• transpose matrix.

• Identity matrix

• original matrix.

If |A| = 0, then A is

• zero matrix

• singular matrix

• non-singular matrix

• Identity matrix

• 4

• 8

• 3

• 6

Evaluate the determinant of the matrix.

• -21

• 0

• 9

• 12

Evaluate the determinant of the matrix.

• -21

• 0

• 9

• 12

Determine whether the matrices are multiplicative inverses.

• Yes

• No

• Elevator

• Pi

Determine whether the matrices are multiplicative inverses.

• Yes

• No

• Workout

• Valut-Tech

Determine if the matrix has an inverse, if so find it.

• No

•  0   1
  -1   2

• -1   3
    1   -2

•   2   -1
  -1   1