Question

b) If z = 3-4i, then find z ​

Answer 1

Given,  z=3−4i

So, zˉ=3+4i

z−zˉ=−8i

z1=253+4i 

z2=−7−24i

zzˉ=(3−4i)(3+4i)=9−12i+12i+16=25