Matrix multiplication doubt

I have to do a matrices operation given as A.X=B where A is an 1X1 matrix, x is a 3X1 matrix and B is a 3X3 matrix with elements of 3rd column zero. here A is unknown term and i wish to find the value of A. please guide me on how to solve this problem?

Re: Matrix multiplication doubt

Are there any numbers with this? Or is this all purely hypothetical/theoretical?

Anywho... what you would do is you would take the B matrix, and then multiply it by the inverse of the X matrix to solve for A matrix. Seeing as it is sort a complicated process and rather awkward to put into words, I have a link that takes you to a great website that explains it better.

Matrix Inversion: Finding the Inverse of a Matrix

It is really a rather easy process. If you have questions, feel free to ask. I can break it down step by step if you wish.

Re: Matrix multiplication doubt

Hello, rcty!

Are you sure you have typed the problem correctly?

Do you realize what you are asking?

First of all, you cannot multiply a by a

Even if you could, you wouldn't get a