JEE (Advanced) 2019 Paper-2 Question 38

Question 38

Let $$x \in R$$ and let
$$P = \begin{bmatrix}1 & 1 & 1 \\0 & 2 & 2\\0 & 0 & 3\end{bmatrix}, Q = \begin{bmatrix}2 & x & x \\0 & 4 & 0\\x & x & 6\end{bmatrix}$$ and $$R = PQP^{-1}$$
Then which of the following options is/are correct?



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