Topic: Matrix Inverse


Find the determinant of the following matrix.

matrix

Press the matrix button or combination of buttons to get the matrix menu. Next, enter the matrix using the matrix editor under one of the letters. This time we will use [A]. From the home screen, re-enter the matrix menu. Select 1:[A], then press ENTER.

TI84 screen TI84 screen

Press the x-1 key, and then press ENTER. The inverse matrix is displayed.

TI84 screen TI84 screen

 



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