troyboi23
troyboi23 troyboi23
  • 04-07-2021
  • Mathematics
contestada

Divide the following complex numbers:
[tex](2 + i) \div (1 - 4i)[/tex]
​

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 05-07-2021

Answer:

[tex]-\dfrac{2}{17} + \dfrac{9}{17}i[/tex]

Step-by-step explanation:

[tex] (2 + i) \div (1 - 4i) = [/tex]

[tex] = \dfrac{2 + i}{1 - 4i} [/tex]

[tex] = \dfrac{2 + i}{1 - 4i} \times \dfrac{1 + 4i}{1 + 4i} [/tex]

[tex] = \dfrac{(2 + i)(1 + 4i)}{(1 - 4i)(1 + 4i)} [/tex]

[tex] = \dfrac{2 + 8i + i + 4i^2}{1 + 16} [/tex]

[tex] = \dfrac{2 + 9i - 4}{17} [/tex]

[tex] = \dfrac{-2 + 9i}{17} [/tex]

[tex]= -\dfrac{2}{17} + \dfrac{9}{17}i[/tex]

Answer Link

Otras preguntas

Plz answer quick!!!!!!
The diagram shows an original sequence of DNA and then a mutated sequence of DNA Original : AT, AT, AT, CG, CG, CG, GC, GC, GC Mutated : AT, AT, AT, CG, AT, CG,
1879 - (the dual alliance) ww1 who was involve?
what is the fafsa4caster
I have up to 8 I just really need help with the rest
C3H8+O2 ————> CO2+H2O What is the total number of moles of O2 required to completely react with 2.5 moles of C3H8?
How did the end of World War I affect the economic opportunities available to women and African Americans? Both groups enjoyed increased opportunities after
Name one long term consequence of the railroad.
which of the following describes one of the major economic benefits of free trade between countries
which factor plays the biggest role in delaying