Question

Calcular a e b de modo que:(2a – b) + 3i = – 2 + (– a + b)i *

Answer 1

Resolução:
(2a - b) + 3i = - 2 +(- a + b)i

$\left \{ {{2a-b=-2} \atop {3=-a+b}} \right.$

$\left \{ {{2a+b=-2} \atop {-a+b=3}} \right.$

$\left \{ {{2a+b=-2} \atop {-a+b=3}} \right. ------------------- a = 1$

a = 1

$-a+b=3$

-1 + b = 3
b = 3 + 1
b = 4


S = {1 ; 4 }

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