Matrices - the basics

Questions 1 to 4

1. Which of the above are square matrices?

1 point

A

B

C

D

E

F

2. Which matrix/matrices have dimensions 3x2

1 point

A

B

C

D

E

F

3. Which matrices can be added together?

1 point

D+F

A+B

B+F

C+D

E+F

C+A

4. Which matrix/matrices can be multiplied by a scalar?

1 point

A

B

C

D

E

F

Questions 5 to 10

5. Find the matrix A-C.

1 point

B

A

D

C

Clear selection

6. Find the matrix C-A.

1 point

C

D

A

B

Clear selection

7. What matrix is the following?

1 point

(-1/2)D

(1/2)F

(1/2)D

(-1/2)F

Clear selection

8. Find the matrix 3A-2B.

1 point

D

B

C

A

Clear selection

9. Given that 2A-X=C, find the matrix X.

1 point

B

A

D

C

Clear selection

10. Given that Y-A=2B, find the matrix Y.

1 point

D

C

B

A

Clear selection