太原理工大学
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- 实对称矩阵特征值的几何重数等于代数重数
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- 幂零矩阵能对角化。
- 不是所有的实二次型都可以化为标准形.
- 向量组的秩就是它的极大线性无关组的个数.
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- 向量组A线性无关的充要条件是A有唯一的最大无关组.
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- 关于非其次线性方程组下列说法正确的是()
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- 下列命题错误的是
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A:错 B:对
答案:
A:错 B:对
答案:错
A:错 B:对
答案:对
A:错 B:对
答案:对
A:错 B:对
答案:
A:对 B:错
答案:错
A:对 B:错
答案:对
A:对 B:错
答案:对
A:对 B:错
答案:错
A:错 B:对
A:错 B:对
A:对 B:错
A:对 B:错
A:对 B:错
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
A:对 B:错
A:错 B:对
A:对 B:错
A:对 B:错
A:对 B:错
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A:如果非齐次线性方程组解不唯一,则它的系数行列式必为零 B:一个非齐次线性方程组一定有解 C:如果非齐次线性方程组的系数行列式不为零,则方程组一定有解 D:一个非齐次线性方程组不一定有解
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B:1
C:-1 D:
A:不可能是2 B:可能是3 C:可能是0 D:可能是1
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B:0
C: D:
A: B: C: D:
A:1
B:2 C:0 D:6
A: B: C: D:
A:2 B:3 C:1 D:4
A:3 B:2 C:1 D:0
A: B: C: D:
A: B: C: D:
A:向量组中去掉一个向量后仍线性无关 B:向量组中每个向量任意增加一个分量后仍线性无关 C:向量组中每个向量都去掉第一个分量后仍线性无关 D:向量组中增加一个向量后仍线性无关
A:1,2,3
B:6,3,2
C:6,3,-2
D:12,3,2
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
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