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 ( 75+ )
Otras preguntas
compare and contrast doughs and batters ? A. dough have more liquid and less flour than batters. B.batters have more liquid and less flour than doughs
What website is least likely to provide realiable information about rainforests in Costa Rica
Please help! Thanks!
how do you say "water" in Latin
What is the basic teaching of confucianism HELPPPPP
One inch is approximately 252 5 millimeters. What is 252 5 as a decimal?
how many solutions are there to the equation below 6x+30+4x=10(x+3)a)0b) infinitely manyc) one
HELPPP PLSSSSSsS NOW
How many bonds and lone pairs are in the molecule SIH4? A.2 bonds, 2 lone pairs B.4 bonds, 4 lone pairs C.no bonds, 4 lone pairs D.4 bonds, no lone pairs
Juan wants to start a lemonade stand to earn money. He needs money to purchase the materials before he can sell the lemonade and earn money. His mother agrees t