Znajdz x i y, jesli x i y sa liczbami rzeczywistymi i spelniaja warunek
(3-2i)x+(4+i)y=2+6i
( 3 - 2 i) x + (4 + i) y = 2 + 6 i
3x - 2x i + 4y + y i = 2+ 6 i
(3x + 4y) + (y - 2x) i = 2 + 6 i
zatem
3x + 4y = 2
y - 2x = 6 ---> y = 6 + 2x
------------------------------
3x + 4(6 + 2x) = 2
y = 6 + 2x
-------------------------
3x + 24 + 8x = 2
11x = -22 / : 11
-----------------
x = -2
y = 6 +2*(-2) = 6 - 4 = 2
Odp. x = -2 oraz y = 2
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( 3 - 2 i) x + (4 + i) y = 2 + 6 i
3x - 2x i + 4y + y i = 2+ 6 i
(3x + 4y) + (y - 2x) i = 2 + 6 i
zatem
3x + 4y = 2
y - 2x = 6 ---> y = 6 + 2x
------------------------------
3x + 4(6 + 2x) = 2
y = 6 + 2x
-------------------------
3x + 24 + 8x = 2
y = 6 + 2x
-------------------------
11x = -22 / : 11
y = 6 + 2x
-----------------
x = -2
y = 6 +2*(-2) = 6 - 4 = 2
Odp. x = -2 oraz y = 2
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