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

Conduct a deep study of the Nigeria Media landscape and identify a major historical or contemporary issue that has, Explain how this issue has and will influenc
Which parts of The Action Potential Are Represented On The ECG?
Jen recently rode her bicycle to visit her friend who lives 6 miles away. On her way there, her average speed was & miles per hour faster than on her way h
what is government offices​
please help and dont get it wrong! thank you =)))
Lucian was hiking through a field directly toward his car, which was parked on a long, straight road perpendicular to his path, when he came to a swamp. He turn
Name the process by which sugar moves into cell A. Name the process by which sugar moves into cell B.
Write the name of each note and the name of one of its enharmonic equivalents. Help!!!
Light energy is part of a larger form of energy known as __________.
what is the value of c? enter your answer in the box. round only your final answer to the nearest whole number.