MATRICES Inverse Matrix (Page 1 of 3)

Some square matrices have an inverse matrix. Use the reciprocal key x to the -1 key. to calculate an inverse matrix (if it exists). Let's find the inverse matrix for matrix C. Since inverse matrices frequently contain entries that are fractions, add the Frac command.

 CLEAR key.
 MATRX key. 3: menu selection. x to the -1 key. MATH key. 1: menu selection. ENTER key. **

 Right arrow key. Left arrow key.

 Calculator screen image. Calculator screen image.

If the answer is partially obscured, use the right and left arrow keys to scroll the result back and forth.
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