問題詳情
二、多選題 (2題 每題5分 共10分)(倒扣至該小題0分) 1.關於矩陣 
﹐ ﹐選出正確的選項﹕
(A)矩陣A有2列3行
(B)矩陣A是3 ´ 2階矩陣
(C)矩陣A的第(2,1)元是
(D)矩陣的和
(E)矩陣
的所有元的和為7﹒
﹐ ﹐選出正確的選項﹕ (A)矩陣A有2列3行
(B)矩陣A是3 ´ 2階矩陣
(C)矩陣A的第(2,1)元是
(D)矩陣的和
(E)矩陣
的所有元的和為7﹒
參考答案
答案：E[無官方正解]
難度：適中0.5
統計：A(0),B(1),C(0),D(0),E(1)
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