If A, B, and C are invertible matrices, the expression (AB-1)-1(CA-1)-1C2 evaluates to ____________
If A, B, and C are invertible matrices, the expression (AB-1)-1(CA-1)-1C2 evaluates to ____________ Correct Answer BC
Using the properties (AB)-1=b-1A-1 and (A-1)-1=A, we may have, (AB-1)-1(CA-1)-1C2 =(B-1)-1A-1(A-1)-1C-1C2 =BA-1AC-1C2 =BIC=BC .
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Feb 20, 2025