复数|(3+4i)(3−5i)3+5i|+51−2i的共轭复数是．

Question

复数|((3+4i)(3−5i))/(3+5i)|+(5)/(1−2i)的共轭复数是______．

Answer 1

|((3+4i)(3−5i))/(3+5i)|+(5)/(1−2i)
=(|(3+4i)||(3−5i)|)/(|3+5i|)+(5)/(1−2i)
=5+1+2i
=6+2i
∴共轭复数是6-2i
故答案为6-2i