Q.If $A = \begin{pmatrix} 1 & 1 & 1 \ 1 & -1 & -1 \ 1 & 1 & 1 \end{pmatrix}$ , then $A^3$ equals

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Q.If A=(111 1−1−1 111)A = \begin{pmatrix} 1 & 1 & 1 \ 1 & -1 & -1 \ 1 & 1 & 1 \end{pmatrix}A=(1​1​1 1​−1​−1 1​1​1​), then A3A^3A3 equals