leyenphuongehe leyenphuongehe
  • 22-06-2021
  • Mathematics
contestada

cho số phức z thỏa mãn 2iz-5+i=i-(z-2i) tính modun của số phức w=z-1+i

Respuesta :

LammettHash
LammettHash LammettHash
  • 22-06-2021

Solve the given equation for z :

2iz - 5 + i = i - (z - 2i )

2iz - 5 = 2i - z

(2i + 1) z = 2i + 5

z = (2i + 5)/(2i + 1)

z = (2i + 5)/(2i + 1) × (2i - 1)/(2i - 1)

z = (4i ² + 10i - 2i - 5) / (4i ² - 1)

z = (8i - 9)/(-5)

z = 9/5 - 8/5 i

Then

w = z - 1 + i = 4/5 - 3/5 i

Answer Link

Otras preguntas

what is change of focus techniques?
If you are analyzing the way a particular book includes long, complex sentences, what are you discussing? A. genre B. style C. theme D. plot
If a car increases its speed from 20 mph to 60 mph, by what factor does the kinetic energy of the car increase
Select the statements that are true for the graph of y = −(x−0.5)^2+9 1. The graph has a minimum. 2. The graph has a maximum. 3. The vertex is ​ (0.5, 9) ​. 4.
I am an odd number. I am less than 100. The sum of my fights is 12. I am a multiple of 15. What number am I?
What is the volume of an aquarium that is 1 yard wide, .5 yard deep, and .75 yard long?
Why is compound interest preferable to simple interest? A.Compound interest pays at least double the interest on the principal during each month. B.Compound in
Put the protein digestion steps in order of their occurrence during the digestive process
Heat will flow from a hot object to a cold object until the objects reach A. stability. B. boiling point. C. collapse. D. equilibrium.
which type of medical reduces pain but can cause liver damage