7令矩陣A=
,試問 A 的秩(rank)為何?
(A)1
(B)2
(C)3
(D)4
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統計: A(0), B(0), C(7), D(2), E(0) #1021758
統計: A(0), B(0), C(7), D(2), E(0) #1021758