|
|
|
|
|
|
|
|
|
|
|
|
$$$\left[\begin{array}{cc}2 & 3\\8 & 9\end{array}\right]$$$ 的行列式
相关计算器: 代数余子式矩阵计算器
您的输入
计算 $$$\left|\begin{array}{cc}2 & 3\\8 & 9\end{array}\right|$$$。
解答
2x2 矩阵的行列式为 $$$\left|\begin{array}{cc}a & b\\c & d\end{array}\right| = a d - b c$$$。
$$$\left|\begin{array}{cc}2 & 3\\8 & 9\end{array}\right| = \left(2\right)\cdot \left(9\right) - \left(3\right)\cdot \left(8\right) = -6$$$
答案
$$$\left|\begin{array}{cc}2 & 3\\8 & 9\end{array}\right| = -6$$$A
Please try a new game Rotatly