Matrices Operation

Find the product of the two matrices. (Multiply)

• 17   12
  25   18

• 8   9
  12   6

• 6   6
  7   5

• 12   10
  10   12

What is the determinant of this matrix?

• -2

• 2

• 10

• 24

What is the determinant of this matrix?

• 0

• 24

• -24

• -12

Are the matrices inverses of each other?

• Yes

• No

Are the matrices inverses of each other?

• Yes

• No

These matrices are being multiplied.

Determine the dimension/size of the new matrix. 

• undefined

• 4  x  2

• 3  x  3

• 4  x  3

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• undefined

• 1 x 6

Multiply

• 20     15    -10
  30     -5         0

• -20      15     -10
  30     -5          0

• 1        8       3
  11     4        5

• 20     -15     10
  -30         5        0  

Find the product of the two matrices.

• undefined

• -3   16
  17   12
  8   -10

• 3   12 
  -15  -8
  -1   -3

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

• undefined

• ( 3 x 1 )

• ( 1 x 2 )

• ( 3 x 2 )