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प्रश्न
If \[A = \begin{bmatrix}1 \\ 2 \\ 3\end{bmatrix}\] write AAT.
उत्तर
\[Given: A = \begin{bmatrix}1 \\ 2 \\ 3\end{bmatrix} \]
\[ A^T = \begin{bmatrix}1 & 2 & 3\end{bmatrix}\]
\[Now, \]
\[A A^T = \begin{bmatrix}1 \\ 2 \\ 3\end{bmatrix}\begin{bmatrix}1 & 2 & 3\end{bmatrix}\]
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