|
|
|
|
|
|
|
|
|
|
|
|
$$$\left[\begin{array}{cc}1 - \lambda & 2\\0 & 3 - \lambda\end{array}\right]$$$ 的行列式
相關計算器: 代數餘子式矩陣計算器
您的輸入
計算 $$$\left|\begin{array}{cc}1 - \lambda & 2\\0 & 3 - \lambda\end{array}\right|$$$。
解答
2x2 矩陣的行列式為 $$$\left|\begin{array}{cc}a & b\\c & d\end{array}\right| = a d - b c$$$。
$$$\left|\begin{array}{cc}1 - \lambda & 2\\0 & 3 - \lambda\end{array}\right| = \left(1 - \lambda\right)\cdot \left(3 - \lambda\right) - \left(2\right)\cdot \left(0\right) = \lambda^{2} - 4 \lambda + 3$$$
答案
$$$\left|\begin{array}{cc}1 - \lambda & 2\\0 & 3 - \lambda\end{array}\right| = \left(\lambda - 3\right) \left(\lambda - 1\right)$$$A
Please try a new game Rotatly