有四阶行列式5THKX.png)
,求54QNWI.png)
的值__________
三阶行列式
的值为__________
有方程组
只有唯一解，求A的取值范围（ ）
有四阶行列式,求的值__________
n阶行列式
的值__________
（填空题）
__________
题目
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行列式按行（列）展开
考察的是代数余子式和行列式展开式的相关知识
，再根据行列式的性质，两行对应成比例，则行列式的值为0
多做几道
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