Question: 48
(Choose 1 answer)
(See picture)
A. (i)
B. (iv)
C. (iii)
D. (ii)E. None of the other choices is correct
Find A^{T}A-(AA^{T})I_{3} if A=[\begin{matrix}1&1&1\end{matrix}]
(i) [\begin{matrix}-2&-2&-2\\ -2&-2&-2\\ -2&-2&-2\end{matrix}]
(ii[\begin{matrix}1&1&1\\ 1&1&1\\ 1&1&1\end{matrix}]
(iii)[\begin{matrix}-2&1&1\\ 1&-2&1\\ 1&1&-2\end{matrix}]
(iv)[\begin{matrix}0&0&0\\ 0&0&0\\ 0&0&0\end{matrix}]
