# if matrix A= ( 1 2 3 ), write AA', where A' is the transpose of matrix A.

A = [ 1 2 3]
So A' = $\left[\begin{array}{c}1\\ 2\\ 3\end{array}\right]$
So AA' = [ 1 2 3] $\left[\begin{array}{c}1\\ 2\\ 3\end{array}\right]$ =  1 + 4 +13  = [14]

• 5

A = [1 2 3]

A'=[1 2 3]

AA' = [14]

• -3
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