find Re(z),lm(z) if z=(1+2i)(-2+I)
Answers
Answered by
2
Step-by-step explanation:
z=(1+2i)(-2+i)
=-2+i-4i+2i²
=-2-2+i-4i. (i²=-1)
=-4-3i
Re(z)=-4
Im(z)=-3i
hope you understand this please do follow me and support ne
Similar questions