(1-3i)·(3i+2)=___
问题描述:
(1-3i)·(3i+2)=___
用什么知识算的
答
复数阿
根据i*i=-1
(1-3i)*(3i+2)
=3i+2-(3i*3i)-6i
=3i+2-9*i*i-6i
=3i-6i+2-9*(-1)
=11-3i