8. (5%) Suppose are row equivalent a，b，c are3 nonzero numbers. What is a + b?(A)0(B) 2(C) 3(D) 4(E)

問題詳情

8. (5%) Suppose

are row equivalent a，b，c are3 nonzero numbers. What is a + b?
(A)0
(B) 2
(C) 3
(D) 4
(E) 5

答案：D
難度：計算中-1
書單：沒有書單，新增