文档介绍：江西财经大学 12- 13 第一学期期末考试试卷参考答案试卷代码: 12063A 考试时间 110 分钟授课课时: 48 课程名称: Linear Algebra (主干课程) 适用对象: 2011 级国际学院试卷命题人盛积良试卷审核人刘满凤 1. Filling int he Blanks (3 ’×6 =1 8’) (1) 4(2) 0(3)????????????412 23 27 019 (4) -1, 4, -5 (5) -10 (6) 5 2. There are four choices in each question, but only one is correct. You should choose the correct one into the blank. (3’× 6=18 ’) (1)(B) (2)(B) (3) 无答案(4)(C) (5)(AB) (6)(B) 3.?????????????????????????????????????????????????1 0 1 10 1 74 75: 43xxxxAN 3x and 4x are any real number. 4.??????????????24 24 23X 5.??????????????????????????????????????????2 1 0 0,8 4 1 0,14 9 0 1 321uuu , dim(W)=3. 6. When 2 2,1??,????????????0 1 1 1u and???????????1 0 1 2u ; when 4 3??,?????????????1 1 1 3u , so??????????????110 101 111S . Then we can get???????????400 020 002D , therefore ???????????? 10 10 10 10 10400 020 002DA . 7. An orthonormal set???????????????????????????????????????????????????????1 3/1 3/1 3/1,0 1 2/1 2/1,0 0 1 1,, 321uuu . 8. If0?b , then we know