Teaching AWES Army Public School TGT Mock Test 2024 Engineering Mathematics Linear Algebra Matrix Algebra
If A = \(\left[ \begin{array}{cc/r} 1 &0 & -1 \\ 2 &1 & -1\\2 & 3 & 2 \end{array} \right]\), then the top row of A-1 is
1
[2 0 -1]
2
[2 -1 \(1\over2\)]
3
[5 6 4]
4
[5 -3 1]