A) Unit matrix
B) Symmetric matrix
C) Skew symmetric matrix
D) Diagonal matrix
Correct Answer: B
Solution :
We have,\[{{A}^{100}}={{2}^{99}}\left[ \begin{matrix} 1 & 1 \\ 1 & 1 \\ \end{matrix} \right]\]\[=A{{A}^{T}}\](by reversal law) \ \[A{{A}^{T}}\] is symmetric matrix.
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