Question

calcule o produto z1=2+i e Z2=2-i

Answer 1

z.1=2+i
z=2-i!!!

z.2=2-i
z=1-i/2!!!

1-i/2=2-i
2.1-2.i/2=2.2+2.i
2-i=4+2i
-3i=2
i=-2/3!!!

z.2=2-(-2/3)
2z=2+2/3
2z=6+2/3
2z=8/3
z=8/6 ÷ 2
z=4/3!!!