设|A|是三阶矩阵,A=(a1,a2,a3)则|A|=?A.|a1-a2,a2-a3,a3-a1| B.|a1-a2,a
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设|A|是三阶矩阵,A=(a1,a2,a3)则|A|=?A.|a1-a2,a2-a3,a3-a1| B.|a1-a2,a2-a3,a3-a1|
C.|a1+2a2,a3,a1+a2| D.|a1-a3,a2+a3,a1+a2|
C.|a1+2a2,a3,a1+a2| D.|a1-a3,a2+a3,a1+a2|
选项 A.|a1-a2,a2-a3,a3-a1| = |a1-a2,a2-a3,a2-a1| = 0
B .|a1-a2,a2-a3,a3-a1| =.|a1-a2,a1-a3,a3-a1| = 0
选项 C .|a1+2a2,a3,a1+a2| = .|a2,a3,a1+a2| = .|a2,a3,a1| = |A|
D | a1-a3,a2+a3,a1+a2| = | a1-a3,a1+a2,a1+a2| = 0
选 C
B .|a1-a2,a2-a3,a3-a1| =.|a1-a2,a1-a3,a3-a1| = 0
选项 C .|a1+2a2,a3,a1+a2| = .|a2,a3,a1+a2| = .|a2,a3,a1| = |A|
D | a1-a3,a2+a3,a1+a2| = | a1-a3,a1+a2,a1+a2| = 0
选 C
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