设a1,a2,a3,a4是4维向量,且a1可由,a2,a3,a4线性表示,则|a1,a2,a3,a4|=
人气：234 ℃ 时间：2020-04-15 15:20:39
解答
a1可由,a2,a3,a4线性表示,
∴a1,a2,a3,a4线性相关,
∴行列式|a1,a2,a3,a4|=0.若a1,a2,a3,a4线性无关，
则行列式|a1,a2,a3,a4|≠0.
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