# Quick matrix transpose proof help

1. Nov 4, 2012

### bossman007

1. The problem statement, all variables and given/known data

let transpose of A be noted by A

Show that if the matrix product AB is permitted, then so is the product BA, where

BA=(AB)

2. Relevant equations

$C_{ij}=ƩA_{ik} B_{kj}$ where summing from k=1 to m

$A`_{ij} = A_{ji}$

3. The attempt at a solution

It wants me to use the relevant equations to prove this, but I am not sure where to start, seeing as the most I have done with matrices so far is add and multiply them

2. Nov 4, 2012

### haruspex

What properties of matrices A and B do you think are needed for the multiplication AB to be a permitted operation?