Question

if z1=(1+i) and z2=(-2+4i) ;prove that im(z1z2/bar z1 =2​

Answer 1

Given  : z1=(1+i) and z2=(-2+4i)

To Find :  Show that  Im (z1  z2)  = 2

Solution:

z1=(1+i)  

z2=(-2+4i)

z1  z2  =(1+i)  (-2+4i)

= - 2 + 4i  - 2i +4i²

i² = - 1

= -2 + 2i - 4

= -6 + 2i

Im (z1  z2)  = 2

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Answer 2

Answer:

plz give correct answer in paper solution