Question

3. Find whether the matrix A=
0 1 2 2
1 1 2 3
2 2 2 3
3 3 3 3
is invertible
If so find its inverse ?
solution:
Apply G. I elimination Method​

Answer 1

Answer:

8. If A has column 1 C column 2 D column 3, show that A is not invertible: (a) Find a nonzero solution x to Ax D 0. The matrix is 3 by 3. (b) ...