Inverse of the matrix [ array cc 1 & -2 3 & 4 array ] is:
Mathematics · JEE Main · NTA Exams — Matrices and Determinants
Inverse of the matrix \(\left[\begin{array}{cc}
1 & -2 \\
3 & 4
\end{array}\right]\) is:
- \(\frac{1}{10}\left[\begin{array}{cc} 1 & -2 \\ 3 & 4 \end{array}\right]\)
- \(\frac{1}{10}\left[\begin{array}{cc} 4 & 2 \\ -3 & 1 \end{array}\right]\)
- \(\left[\begin{array}{cc} 4 & 2 \\ -3 & 1 \end{array}\right]\)
- \(\frac{1}{10}\left[\begin{array}{cc} 4 & -2 \\ -3 & 1 \end{array}\right]\)
Answer
(B) 1 10 [ array cc 4 & 2 -3 & 1 array ]
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