a+i |
2-i |
A.2 | B.-2 | C.
| D.-
|
a+i |
2-i |
(a+i)(2+i) |
(2-i)(2+i) |
2a+2i+ai+i2 |
5 |
(2a-1)+(2+a)i |
5 |
2a-1 |
5 |
2+a |
5 |
a+i |
2-i |
|
1 |
2 |
. |
z |
. |
A |
. |
z |
z1+A |
z2+A |
z1+A |
z2+A |
A.-2 | B.2 | C.1 | D.0 |
1+i |
1-i |
. |
z |
. |
z |
A.1 | B.0 | C.-1 | D.2 |
3 |
A.θ+9π/4 | B.θ+π/4 | C.θ-π/4 | D.θ+7π/4 |
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