How do you find the inverse of #[(6,7), (-6,7)]#?
1 Answer
Jan 19, 2017
Append an identity matrix to the right of the given matrix
Perform elementary row operations until you obtain an identity matrix on the left.
The matrix on the right is the inverse.
Explanation:
Let
Append an identity matrix on the right:
Perform elementary row operations
There is an identity matrix on the left, therefore, the matrix on the right is the inverse: