选修2-2 第三章 复数基础练习（二）答案
一、选择题
1 B z1?a?bi,z2?c?di,(a,b,c,d?R),z1z2?z1z2?(a?bi)(c?di)?(a?bi)(c?di)
?? ?2ac?2bd?R 2 B mm?X?(bi)?2??2????b?(b?R,且b?0)
2(?1?3i)3?2?i?1?3i3(?2?i)(1?2i)?1?3i3135i3 D ??()??()()?
(1?i)61?2i2i52i5 ?i?i?2i
4 C z?3i?3zi?1?0,z?1?3i13???i??，z?z2????2??1
221?3i5 A z?3?3i3i?313???i
22?23i2326 C z1?z2?2(z1?z2)?z1?z2?3,z1?z2?3 22227 B ????1?????1?0
428 C 二、填空题
1 5 2
83 3 1?i 4 2?i 5 0 6 二 7 1?i 8 ?1 9 ?6 10 32?2
