Given that A = (32142−1)\begin{pmatrix}3 & 2 & 1\\4 & 2 & -1\end{pmatrix}(34221−1) and B = (140132)\begin{pmatrix}1 & 4\\0 & 1\\3 & 2\end{pmatrix}103412
AT^TT = (34221−1)\begin{pmatrix}3 & 4\\2 & 2\\1 & -1\end{pmatrix}32142−1
Find AT^TT + B = (34221−1)\begin{pmatrix}3 & 4\\2 & 2\\1 & -1\end{pmatrix}32142−1 + (140132)\begin{pmatrix}1 & 4\\0 & 1\\3 & 2\end{pmatrix}103412 = (482341)\begin{pmatrix}4 & 8\\2 & 3\\4 & 1\end{pmatrix}424831
