
已知复数z满足:|z|=1+3i-z,求(1+i)2(3+4i)22z的值
1个回答
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设z=a+bi,(a,b∈R),而|z|=1+3i-z,
即
?1?3i+a+bi=0
则
?
,z=?4+3i
=
=
=
=
=3+4i.
即
a2+b2 |
则
|
|
(1+i)2(3+4i)2 |
2z |
2i(?7+24i) |
2(?4+3i) |
24+7i |
4?3i |
(24+7i)(4+3i) |
(4+3i)(4?3i) |
75+100i |
25 |
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