# Thread: Find all possible values of det(A)

1. ## Find all possible values of det(A)

Any help is appreciated!

2. Originally Posted by DarK
Any help is appreciated!

$I+A^2=0\Longrightarrow A^2=-I\Longrightarrow \det A^2=\det(-I)=1$ (why?), and since $\det A^2 = \left(\det A\right)^2$ then $\det A=$ ...

Tonio