Question

Urgent va rog! (1-i)(1+i),a doua expresie find la patrat.

Answer 1

sdghlajdk nr complexe

Answer 2

(1-i)(1+i)(1+i)=(1•1+1•i-i•1-i•i)(1+i)
=(1+i-i-i^2)(1+i)
=1•1+1•i+i•1+i•i-i•1-i^2-i^2•1-i^2•i
=1+i+i+i^2-i-i^2-i^3-i^3
=-2i^3+2i+1