SYSTEMS OF EQUATIONS Solving Using The Inverse Matrix (Page 4 of 4)

Now compute A^(-1)*B on the Home screen using the name symbols for each matrix. The x to the -1 key. key is located in the left column on the face of the calculator.

2nd QUIT key. CLEAR key.

MATRX key. 1: menu selection. x to the -1 key. Multiply key. MATRX key. 2: menu selection. ENTER key.

 Calculator screen image.

The variable matrix X is displayed. We can see that the solution to the system is the ordered triple (-1, 2, -2).
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