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January 25, 2015

January 25, 2015

Posted by **Amelie** on Sunday, December 2, 2007 at 11:45pm.

A= | a b c |

| d e f |

| g h i |

Find det(2A^-1), det((2A)^-1).

Find

| a g d |

| b h e |

| c i f |

- Math: determinants -
**Reiny**, Monday, December 3, 2007 at 9:18amAs you can see from your own post, it is very difficult to type and show matirices and determinants in this format.

Take a look at these sites, thy summarize most of the important properties very nicely.

http://www.sosmath.com/matrix/determ0/determ0.html

http://www.ping.be/~ping1339/determ.htm

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