SOLVED:If A is an invertible matrix of order 2 , then det \left(\mathrm{A}^{-1}\right) is equal to (A) \operatorname{det}(\mathrm{A}) (B) \frac{1}{\operatorname{det}(\mathrm{A})} (C) 1 (D) 0

McMaster University

Harvey Mudd College

Baylor University

If A is an invertible matrix of order 2 , then det $\left(\mathrm{A}^{-1}\right)$ is equal to
(A) $\operatorname{det}(\mathrm{A})$
(B) $\frac{1}{\operatorname{det}(\mathrm{A})}$
(C) 1
(D) 0