Question

Find the product CA, if possible.

Answer 1

Matrix A has 2 rows and 3 columns, whereas Matrix C has 3 rows and 2 columns.

The rule is that the number of rows of C must be = to the number of columns of A.
Is that the case here?

Answer 2

If not, you cannot do matrix multiplication here.

Answer 3

it dosent look like it so no

Answer 4

right?

Answer 5

number of rows in C: 3
number of columns in A: 3

Answer 6

right, so its not possible then?

Answer 7

To quote @mathmale ,
"The rule is that the number of rows of C must be = to the number of columns of A.
Is that the case here? .. If \(\color{red}{\text{not}}\), you cannot do matrix multiplication here."

Answer 8

ohhhh i see now

Answer 9

damn so it is possible

Answer 10

I am not very good at matrix multiplication otherwise. Sorry.

Answer 11

thats okay

Answer 12

I wish you luck, then!

Answer 13

A and C cannot be mult. because the middle dimensions of the 2 matrices are different.

Answer 14

↑ I would listen to him, he's the math boss on this site haha