mon29ika29
mon29ika29 mon29ika29
  • 01-08-2014
  • Mathematics
contestada

Square of the complex number (i - 2)?

Respuesta :

TestUser6 TestUser6
  • 01-08-2014
[tex] (i-2)^{2} = i^{2} -4i+4 \\ i= \sqrt{-1} \\ i^{2} =-1 \\ i^{2} -4i+4=-1-4i+4=-4i+3\\ answer: 3-4i[/tex]
Answer Link
Аноним Аноним
  • 01-08-2014
[tex](i-2)^2=\\--------------------\\use:(a-b)^2=a^2-2ab+b^2\\--------------------\\=i^2-2\times i\times2+2^2=-1-4i+4=3-4i\\\\\\\\i=\sqrt{-1}\Rightarrow i^2=-1[/tex]
Answer Link

Otras preguntas

Write 5-10 sentences on why Patricia bath is important to history plz help me ASAP
HELP!!!! Choose the equation below whose axis of symmetry is x = 0.​
A population of coyotes is known to show periodic behavior over time. The table shows the population of coyotes in a specific area over time.
According to the Principle of Utility within the ethical theory of Utilitarianism, happiness is an extermely important factor in determining the rightness and w
The largest​ consumer-products company in the​ world, procter​ & gamble​ (p&g), is in the process of selling more than half of its brands​ (nearly 100)
True or False questions​
Which of the following is a type of chemical used in fertilizer?A. hydrateB. hydriteC. nitrateD. phosphate
As a​ rule, product decisions are likely to be highly involving if the consumer believes there is a great deal of​ ________. this means the person believes ther
Please answer this question!! 30 points and brainliest!!
what was the purpuse of the hawtey smoot tariff of 1930​