Let A= ( array ccr 1 & -1 & 1 2 & 1 & -3 1 & 1 & 1 array ) and 108= ( array lcc 4 & 2 & 2…
Mathematics · JEE Main · NTA Exams — Matrices and Determinants
\[\text { Let } A=\left(\begin{array}{ccr}
1 & -1 & 1 \\
2 & 1 & -3 \\
1 & 1 & 1
\end{array}\right) \text { and } 108=\left(\begin{array}{lcc}
4 & 2 & 2 \\
-5 & 0 & x \\
1 & -2 & 3
\end{array}\right)\]
If B is the inverse of matrix A, then \(\text { II }\) is
- 2
- -1
- 3
- 5
Answer
(D) 5
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