Question

How To find the multiplicative inverse of a matrix ?

Answer 1

Answer:

ex:

Conclusion. To find the inverse of a 2x2 matrix: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc).

Step 1: Get to the Matrix Editing Menu. This is a much more involved step than it sounds like! ...

Step 2: Enter the Matrix. ...

Step 3: Select the Matrix Under the NAMES Menu. ...

Step 4: Press the Inverse Key [x−1] and Press Enter. ...

Step 5: (OPTIONAL) Convert Everything to Fractions.