Finding the Inverse of a Matrix Use a graphing calculator to find the inverse of the matrix, if it exists. (On a TI-83, use the command to obtain the answer in fractions.)
The inverse of the matrix, for the given matrix if it exists.
The matrix is .
Press the key and right arrow to on the screen.
Press key to type the matrix in the calculator.
First, type the dimensions as ,
Now, type the elements of the matrix as .
Press key to save the matrix.
Press the key and go to by hitting the right arrow and then press and to find the determinant of this matrix.
As, determinant in non-zero, inverse exists.
Press the key and then press and to obtain this saved matrix and then press the key to find the inverse of this matrix
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