Wednesday

April 16, 2014

April 16, 2014

Posted by **katy** on Wednesday, December 16, 2009 at 8:30pm.

- math -
**Marth**, Wednesday, December 16, 2009 at 9:13pmlet A be an m by n matrix and B be a n by p matrix. Then A*B is defined. Also, A^-1 is an n by m matrix, and B^-1 is an p by n matrix. So B^-1 * A^-1 is also defined, but A^-1 * B^-1 may not be.

Or, in other words, the commutative property of scalar multiplication does not apply to matrices.

**Related Questions**

Math: matrices - If A and B are both square n x n matrices, If AB = I, prove BA...

Algebra - Let A and B be n x n matrices, assume AB is invertible and show that ...

chemistry - Consider the following overall reaction which is experimentally ...

chemistry - Consider the following overall reaction which is experimentally ...

Math - Solve for the indicated variable: (x/a)+(y/b)+(z/c) = 1, for c This is ...

More math linear equation help? - I'm looking at this graph where I see a line ...

math - If a and b are positive integers and their product is 3 times their sum, ...

math - if a+b=10 and ab=16.find the value of a^2-ab+b^2 and a^2+ab+b^2

geometry - I'm having a hard time with this question: "AB has endpoints A(n,4n) ...

bartlett hill,math - add the like terms together.a+b+a+2b Okay. Well, the ...