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行列式/二阶行列式/计算练习
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行列式
|
2
1
5
4
|
=
5
{\displaystyle {\begin{vmatrix}2&1\\5&4\end{vmatrix}}=5}
|
0.5
3
1
4
|
=
{\displaystyle {\begin{vmatrix}0.5&3\\1&4\end{vmatrix}}=}
|
20
3
15
4
|
=
{\displaystyle {\begin{vmatrix}20&3\\15&4\end{vmatrix}}=}
|
1
2
3
1
4
|
=
{\displaystyle {\begin{vmatrix}{\frac {1}{2}}&3\\1&4\end{vmatrix}}=}
|
1
2
3
−
1
4
|
=
{\displaystyle {\begin{vmatrix}{\frac {1}{2}}&3\\-1&4\end{vmatrix}}=}
|
−
2
3
1
4
|
=
{\displaystyle {\begin{vmatrix}-2&3\\1&4\end{vmatrix}}=}
|
2
3
3
4
|
=
{\displaystyle {\begin{vmatrix}2&{\sqrt {3}}\\{\sqrt {3}}&4\end{vmatrix}}=}
|
2
−
3
1
18
|
=
{\displaystyle {\begin{vmatrix}{\sqrt {2}}&-3\\1&{\sqrt {18}}\end{vmatrix}}=}
|
0
0
1
4
|
=
{\displaystyle {\begin{vmatrix}0&0\\1&4\end{vmatrix}}=}
|
2
3
3
2
1
3
|
=
{\displaystyle {\begin{vmatrix}2^{3}&3^{2}\\1&3\end{vmatrix}}=}
