Can I get some help with this question?
"If C is a 5 x 1 matrix and D is a 3 x 5 matrix, what are the dimensions of DC?"
better review matrix multiplication.
pxq * qxr = pxr
So, DC will be 3x5 * 5x1 = 3x1
Note that CD is undefined.
For some reason, my course skipped over matrix multiplication, but Ill look it up online. Thank you.
I find it hard to believe that the course skipped a topic it is assigning for you to do.
Sure! To determine the dimensions of the product of two matrices, you need to multiply the number of rows of the first matrix by the number of columns of the second matrix.
In this case, C is a 5 x 1 matrix and D is a 3 x 5 matrix. So, let's calculate the dimensions of DC.
To do this, we need to multiply the number of rows of D (which is 3) by the number of columns of C (which is 1).
So, DC will have dimensions of 3 x 1.