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 ( 42+ )
Otras preguntas
What is the distance formula?
Most Americans get their insurance coverage through an employer-based plan.
A record of Earth's long-ago weather can be found by digging into the
Active or passive? The article was published on May 15, 2000.
i really need help with this one
Que hacemos nosotros? Spainsh expert answer only Las muchachas saltar. Las muchachas saltas. Las muchachas salta. Las muchachas saltan.
Round of 793,548 to the nearest hundred
How often must you receive a defensive foreign travel briefing?.
Two grapefruits and three oranges cost $1.95. Three grapefruits and two oranges cost $2.05. What are the costs of one grapefruit and one orange?
I WILL GIVE BRAINLIEST LOOK AT IMMAGE