$$$\left[\begin{array}{cc}4 & 6\\7 & 9\end{array}\right]$$$'nin determinantı

Hesaplayın $$$\left|\begin{array}{cc}4 & 6\\7 & 9\end{array}\right|$$$.

2x2 boyutlu bir matrisin determinantı $$$\left|\begin{array}{cc}a & b\\c & d\end{array}\right| = a d - b c$$$ olarak verilir.

$$$\left|\begin{array}{cc}4 & 6\\7 & 9\end{array}\right| = \left(4\right)\cdot \left(9\right) - \left(6\right)\cdot \left(7\right) = -6$$$

$$$\left|\begin{array}{cc}4 & 6\\7 & 9\end{array}\right| = -6$$$A