题目内容
设复数z满足z(2-3i)=6+4i(i为虚数单位),则z等于( )
A.2i | B.i | C.4i | D.12 |
由z(2-3i)=6+4i,得:z=
=
=
=2i.
故选A.
6+4i |
2-3i |
(6+4i)(2+3i) |
(2-3i)(2+3i) |
26i |
13 |
故选A.
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题目内容
A.2i | B.i | C.4i | D.12 |
6+4i |
2-3i |
(6+4i)(2+3i) |
(2-3i)(2+3i) |
26i |
13 |