1+ai |
2-i |
1+ai |
2-i |
(1+ai)(2+i) |
(2-i)(2+i) |
(2-a)+(2a+1)i |
5 |
2i |
1-i |
A.-1-i | B.-1+i | C.1-i | D.1+i |
. |
z |
A.3+5i | B.3-5i | C.-3+5i | D.-3-5i |
(1+2i)2 |
1-i |
(2-i)2 |
1+i |
A.3-4i | B.-3+4i | C.3+4i | D.-3-4i |
1 |
z |
A.i | B.-i | C.2i | D.-2i |
i |
1+i |
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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