# Thread: matrices

1. ## matrices

im pretty sure this cant be solved, but im not for sure
im think that i need to take the transpose of B, but im not sure that it would be correct
any help would be great

A=[1 -4]

B=
|-2 1|
| 0 1|
|-5 0|

C = A x B

i dont know how to type matrices on a computer but i tried

2. You cannot multiply A x B.

3. You can only multiply matrices when the rows of matrix A is the same as the columns in matrix B

4. Originally Posted by jasimmons86
im pretty sure this cant be solved, but im not for sure
im think that i need to take the transpose of B, but im not sure that it would be correct
any help would be great

A=[1 -4]

B=
|-2 1|
| 0 1|
|-5 0|

C = A x B

i dont know how to type matrices on a computer but i tried
Since you say "I need to take the transpose of B" do you mean: $C= AB^T$?

$AB^T= \begin{bmatrix}1 & -4\end{bmatrix}\begin{bmatrix}-2 & 0 & 5 \\ 1 & 1 & 0\end{bmatrix}$.