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Inverses of 2 x 2 matrices made easy!

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Find the inverse of the following 2x2 matrix:

| 1 2 |
| 3 4 |

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Solution Summary

A easy method for finding the inverse of 2x2 matrices is shown.

Solution Preview

If you haven't yet seen this trick, you'll be glad to have read this:

Consider the matrix:
| 1 2 |
| 3 4 |

Provided the inverse exists, the inverse is simple for any ...

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