ISRO Scientist or Engineer Computer Science 2008 Question 31

Question 31

If the two matrices $$\begin{bmatrix}1 & 0 & x \\0 & x & 1 \\0 & 1 & x \end{bmatrix}$$ and $$\begin{bmatrix}x & 1 & 0 \\x & 0 & 1 \\0 & x & 1 \end{bmatrix}$$ and have the same determinant, then the value of X is



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