Identity and Inverse Matrices

Identify

• singular matrix

• partial fraction

• coeffecient matrix

• inverse matrix

What type of matrix has 1s along the main diagonal and 0s elsewhere?

• zero matrix

• square matrix

• identity matrix

• inverse matrices

Calculator Allowed

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Which matrix is an identity matrix

• A

• B

• C

• D

Find the values of M and N

• M=1/2 N=3

• M=1/6 N=3

• M=1/2 N=-3

• M=1/6 N=3

The identity matrix for 2 x 2 matrices is:

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Identify

• Cramer's Rule

• row echelon form

• Identity matrix

• inverse matrix

Determine whether the matrices are inverses.

• Yes

• No

Determine whether the matrices are inverses.

• Yes

• No

Determine whether the matrix has an inverse or not.

• Yes

• No