Question

*NUMERE COMPLEXE*
Exercitiul 3, va rog!

Answer 1

Răspuns

$x=-\frac{11}{13}$

$y=\frac{224}{13}$

Explicație pas cu pas:

$3x+ix-2y-8iy=-2-4i$

$3x+ix-2y-8yi+2+4i=0$

$(3x-2y+2)+i(x-8y+4)=0+1i$. Identficam $3x-2y+2=0$

$x-8y+4=1$

$12x-8y+8=0$

$x-8y+4=1$

$13x+12=1$

$x=-\frac{11}{13}$

$x-8y+4=1$

$-\frac{11}{13}-8y+4=1$

$-8y+4=\frac{24}{13}$

$-8y=-\frac{28}{13}$

$y=\frac{28*8}{13}=\frac{224}{13}$