Matrix Operations and Inverse

Solve the system.

• No Solution

• Infinitely Many Solutions

• (2, -1, 5)

• (3, -2, 1)

Calculate the determinant

• 0

• none

• -32

• -8

Find A+B

• 8     10
  8      1 

• 12     25
  7     1

• 10     30
  0     1

• can't add two together because the rows dont match columns

The inverse of a transposed matrix is the same as the transpose of an inversed matrix

• True

• False

Which of the following matrix operations are defined? (Select all that apply)

• AB

• BA

• CD

• DE

• DF

• p=4, q=-2

• p=-2, q=4

• p=2, q=-4

• p=-4, q=2

Which set of simultaneous equations is generated by the matrix equation above?

• 
• 
• 
• 

Find the value of x and y if

• x=2 , y=5

• x=3, y=3

• x=3, y=5

• x=5, y=3

Solving using Matrices:
When solving a system AX=B using inverse matrices, you use the equation:

• X=A^-1B

• B=X^-1A

• A=X^-1B

• X=B^-1A