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 ( 22+ )
Otras preguntas
Please please need help on this one
Antisocial personality disorder psychology definition
Which equation represents a line that passes through (5, 1) and has a slope of StartFraction one-half EndFraction? y – 5 = y minus 5 equals StartFraction one-ha
cuanto es 2-{[-3x(-7+3x5)-2-3x9]-3+2x6} ayuda porfavor <3 <3
How does the setting of "Mending Wall" help develop its central idea? The modern setting is what makes the speaker want to rebuild the old walls that have cru
which colony was established primarily for financial gain
Find the missing measures
You are the manager of an independent rental car company. Which application below can aid you in inventorying the cars in your rental fleet? Question 31 options
Evaluate j/k -0.2k when j=25 and k=5
please helpme if possible withanother thing