F(z)=|1+z|-z的共扼复数,且F(-z)=10-3i,求复数z
问题描述:
F(z)=|1+z|-z的共扼复数,且F(-z)=10-3i,求复数z
答
设z=a+bi.
F(-z)=|1-z|+z=√[(1-a)²+(-b)²]+a+bi=10-3i
b=-3.
√[(1-a)²+3²]+a=10.
解得:a=5.
z=5-3i