Consider the matrix A
A=\left[\begin{array}{cc}\lambda & 2 \\2 & \lambda-3\end{array}\right].
For what values of λ is the matrix A nonsingular? Find A^{-1} if A is nonsingular.
Consider the matrix A
A=\left[\begin{array}{cc}\lambda & 2 \\2 & \lambda-3\end{array}\right].
For what values of λ is the matrix A nonsingular? Find A^{-1} if A is nonsingular.