If \[A=\left[ \begin{matrix} 1/3 & 2 \\ 0 & 2x-3 \\ \end{matrix} \right],B=\left[ \begin{matrix} 3 & 6 \\ 0 & -1 \\ \end{matrix} \right]\]and \[AB=I\], then x = [MP PET 1987]

If \[A=\left[ \begin{matrix} 1/3 & 2 \\ 0 & 2x-3 \\ \end{matrix} \ri

1.	If \[A=\left[ \begin{matrix} 1/3 & 2 \\ 0 & 2x-3 \\ \end{matrix} \right],B=\left[ \begin{matrix} 3 & 6 \\ 0 & -1 \\ \end{matrix} \right]\]and \[AB=I\], then x = [MP PET 1987]
A.	-1
B.	1
C.	0
D.	2
Answer» C. 0

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If \[A=\left[ \begin{matrix} 1/3 & 2 \\ 0 & 2x-3 \\ \end{matrix} \right],B=\left[ \begin{matrix} 3 & 6 \\ 0 & -1 \\ \end{matrix} \right]\]and \[AB=I\], then x = [MP PET 1987]

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