\[A=\left[ \begin{matrix} 1 & -1 \\ 2 & 3 \\ \end{matrix} \right]\] and \[B=\left[ \begin{matrix} 2 & 3 \\ -1 & -2 \\ \end{matrix} \right]\] , then which of the following is/are correct? 1. \[AB({{A}^{-1}}{{B}^{-1}})\] is a unit matrix. 2. \[{{(AB)}^{-1}}={{A}^{-1}}{{B}^{-1}}\] Select the correct answer using the code given below:

\[A=\left[ \begin{matrix} 1 & -1 \\ 2 & 3 \\ \end{matrix

1.	\[A=\left[ \begin{matrix} 1 & -1 \\ 2 & 3 \\ \end{matrix} \right]\] and \[B=\left[ \begin{matrix} 2 & 3 \\ -1 & -2 \\ \end{matrix} \right]\] , then which of the following is/are correct? 1. \[AB({{A}^{-1}}{{B}^{-1}})\] is a unit matrix. 2. \[{{(AB)}^{-1}}={{A}^{-1}}{{B}^{-1}}\] Select the correct answer using the code given below:
A.	1 only
B.	2 only
C.	Both 1 only 2
D.	Neither 1 nor 2
Answer» E.

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