Show that if A and B are any 2x2 matrices with real entries, then sqaure of

(AB-BA) is a multiple of the identity. Is the result true for nxn matrices with n not equal 2?

Thanks very much

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- May 11th 2006, 07:27 PMsuedenationAlgebra2
Show that if A and B are any 2x2 matrices with real entries, then sqaure of

(AB-BA) is a multiple of the identity. Is the result true for nxn matrices with n not equal 2?

Thanks very much - May 12th 2006, 05:39 AMtopsquarkQuote:

Originally Posted by**suedenation**

-Dan - May 12th 2006, 05:47 AMCaptainBlackQuote:

Originally Posted by**topsquark**

RonL