第七章测试1. If
, where 
and 
are real numbers, then find the values of 
and 
.（ ）A:
B:
C:
D:
答案:B
2.Express
in the form of 
.（ ）A:
B:
C:
D:
3.
（ ）A:
B:1
C:0
D:
4.Express the given expression 
in the form 
and find the values of 
and 
.（ ）A:
B:
C:
D:
5.Find the real values of 
and 
such that 
.（ ）A:
,
B:
,
C:
,
D:
,
6.Write in the form x+iy of 
（ ）A:
B:
C:
D:
7.Write in the form 
of 
（ ）A:
B:1
C:0
D:
8.Write in the form 
of 
. （ ）A:
B:
C:
D:
9.Give all roots (solutions) of 
.（ ）A:
B:
C:
D:
10.Split into factors: 
（ ）A:
B:
C:
D:
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