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Let:

$$A=\begin{pmatrix}0&1\\\ -1&0\end{pmatrix}$$
$$B=\begin{pmatrix}-1&0\\\ 0&1\end{pmatrix}$$

Which of the following matrices are invertible?

Select ALL that apply.

A

$A$

B

$B$

C

$A+B$

D

$A^T$

E

$A-B$

F

$AA^T$

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