Identity and Inverse Matrices

What is the identity for matrix multiplication?

• 1 1

  1 1

• 1 0

  0 1

• 0 0

  0 0

• 0 1

  1 0

Identify the types of the matrix

• Cramer's Rule

• row echelon form

• Identity matrix

• inverse matrix

______________ matrices are matrices whose product (In both orders) is the identity matrix.

• zero

• square

• identity

• inverse

What is the identity for matrix multiplication?

• 1 1

  1 1

• 1 0

  0 1

• 0 1

  1 0

What is the result of multiplying any matrix by the identity matrix?

• zero matrix

• original matrix

• symmetric matrix

• diagonal matrix

A is any matrix and I is an Identity matrix then AI =

• A

• I

• O

• None

Find the inverse of the matrix.

• 
• 
• 
• No Inverse Exists

• A
• B
• C
• D

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

• inverse matrix.

• transpose matrix.

• Identity matrix

• original matrix.

Will this matrix have an inverse?

• Yes

• No

• Unable to Determine