Q24Comprehension0.5 Marks4 Aug 2024PassageThe columns of A=1a[1−222−1−22bc]A=\frac1a\begin{bmatrix}1&-2&2\\2&-1&-2\\2&b&c\end{bmatrix}A=a1122−2−1b2−2c are orthonormal. Answer the subquestions.If ATA+AAT=kIA^T A + A A^T = kIATA+AAT=kI, where kkk is a scalar and III is the identity matrix, find kkk.Your answerPress Enter to check.