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Questions  >>  CBSE XII  >>  Math  >>  Matrices
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Find the value of x if $\begin{bmatrix} x & -5 & -1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 2 \\ 0 & 2 & 1 \\ 2& 0 & 3 \end{bmatrix} \begin{bmatrix} x \\ 4 \\ 1 \end{bmatrix} = 0$


$(A)\; 4\sqrt3$
$(B)\; -4\sqrt3$
$(C)\; \pm 4\sqrt 3$

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