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
VER TODAS LAS RESPUESTAS ( 11+ )
Otras preguntas
Does this table represent a function?why or why not?
what did the second great awakening inspire people to do?
_____ prevention consists of identifying and treating psychological disorders in the early stages, before they become serious. A. Tertiary B. Secondary c. Prima
Select the correct answer. Which sentence is an example of a pun? A. Rome was not built in one day, and Greece was built in three. B. Raul kept reminding Justin
How did Judaism survive over time as a religion?
How many cubes fit into a rectangle
What’s the answer to this question
Explain easy and west in regards to music
we know from the DNA unit that chromosome (which are made of DNA) are copied by a process called ______
Those tests were constructed around items like fill-in-the-blank sentence completion, such as “Even though Tom was ______, Mary thought he was _____.” And the c