Matrix Writing

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

Add

• 11    8
  -4     2

• 3     2
  -6    -6

• -3    2
  -4    -6

• 10    8
  -6    2

Find the product.

• undefined

• -3   16
  17   12
  8   -10

• 3   12 
  -15  -8
  -1   -3

Solve the system by writing the Augmented Matrix and using RREF in a Matrix Calculator.

• (5, -6, 3)

• (2, 3, -1)

• (-4, 2, 5)

• No Solution

Solve the system by writing the Augmented Matrix and using RREF in a Matrix Calculator.

• (5, -6, 3)

• (5, -7/3, 0)

• Infinite Solutions

• No Solution

What is the Inverse of A? Show work by hand.

• 
• 
• Cannot Determine

• 

Solve the system by Writing and Solving a Matrix Equation. The Inverse Matrix Method.

• (3, -2, 4)

• (2, -3, 1)

• (-3, 2, -1)

• Infinitely many solutions

Find the determinant of the matrix by hand. No Matrix Calculator allowed.

• A

• B

• C

• D

Subtract

• -5
  -8
  3
  10

• -9
  8
  3
  2

• 5
  -8
  3
  10

• -5
  8
  3
  2

Are these matrices inverses of each other?

• Yes

• No

• Unable to Determine