Question

2) Determine x e y:

a) (2x+1)+(1+3y)i=1-2i

b) 2x+(x-2y)i=6i

c) 2x-y+(x+y)i=6-9i

Alguém!!!!!!!!

Answer 1

a) (2x+1)+(1+3y)i=1-2i
(2x+1)=1 => 2x=0 => x=0✓
(1+3y)=-2=> 3y=-3 => y=-1✓

b) 2x+(x-2y)i=6i
2x=0 =><x=0✓
(x-2y)=6 => 0-2y=6 => y= -3✓

c) 2x-y+(x+y)i=6-9i
{2x-y=6
{x+y=-9
------------ (+)
3x = -3
x= -1✓
{x+y=-9 => -1+y=-9 ==> y=-9+1=-8✓