6 請選出解空間(solution space)相異於其他選項之線性系統。
(A) x1 + x2 + x3 = 3− 2x1 − x2 + 4x3 =1 
(B) 2x1 + 2x2 + 2x3 = 6      − 2x1 − x2 + 4x3 =1 
(C)3x1 + 3x2 + 3x3 = 9   x2 + 6x3 = 7  
(D) x1 + x2 + x3 = 3  2x1 + 2x2 + 2x3 = 6

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統計: A(0), B(1), C(0), D(3), E(0) #1031478