حل تشریحی سوال شماره 3 هندسه 3

$\left|A^3\right|={\left|A\right|}^3=-8\Rightarrow \left|A\right|=-2$ (0/25)

(0/25)$\frac{|A^{-1}|}{|3A|}=\frac{\frac{1}{|A|}\left(0.25\right)}{3^2|A|\left(0.25\right)}=\frac{1}{36}\left(0.25\right)$