3 |
1+2i |
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
3 |
1+2i |
3(1-2i) |
(1+2i)(1-2i) |
3-6i |
5 |
3 |
5 |
6 |
5 |
3 |
5 |
6 |
5 |
z2 |
z-1 |
A.-2 | B.2 | C.2i | D.-2i |
2+i |
2-i |
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
1-i |
1+i |
A.-i | B.-1 | C.i | D.1 |
1 |
2 |
| ||
2 |
A.0 | B.1 | C.3+
| D.-1+
|
m+ni |
m-ni |
A.i | B.-i | C.1 | D.-1 |
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