Determine which of the formulas hold for all invertible http://webwork.math.umass.edu/webwor...8493316bb1.png matrices http://webwork.math.umass.edu/webwor...0fcdd79cd1.png and http://webwork.math.umass.edu/webwor...224e2cc9b1.png

A.http://webwork.math.umass.edu/webwor...542be44071.png is invertible

B.http://webwork.math.umass.edu/webwor...45d980b7c1.png

C.http://webwork.math.umass.edu/webwor...a0a6b97c51.png

D.http://webwork.math.umass.edu/webwor...da99e63731.png

E.http://webwork.math.umass.edu/webwor...3771de8791.png

F.http://webwork.math.umass.edu/webwor...2e82de1d41.png is invertible

I have to select which of the above are true. I thought I was right in picking A, C and F. However, I was apparently wrong.

Any help is greatly appreciated. Thanks in advance!