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
What is a couplet? A stanza made up of four lines A pair of consecutive rhyming lines A point where a row of poetry ends A repetition of sounds in neighbori
How did the Byzantine empire differ from the Roman empire?
simple interest on $4120 with an annual interest rate of 3.4% for 9 years. How much did he earn in interest? Round your answer to the nearest cent.
If a card is picked from a standard deck of cards. Determine the odds against and the odds in favor of selecting a card greater than 5 (ace is low)
which action is a domestic policy decision
What form of judicial selection requires judges to face a retention ballot?
Quarks a. can have a charge of +1 or -1 b. are composed of hadrons c. are of six types d. transmit the strong nuclear force e. are free floating independent par
9.2 Multiplying and Factoring Polynomials 9k ( 7k+ 4 )
Darlene Ramirez bought a home for $140,000. She put 20% down with a mortgage rate of 7.5% for 25 years. What are her yearly payments?
1+(−4−8×(−3))×(−3) please help