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 ( 85+ )
Otras preguntas
If triangle RST is congruant to triangle ABC, the measure of angle A equals x^2-8x, and the measure of angle C equals 4x-5, and the measure of angle R equals 5x
What is the area of the rectangle? _________ un2
What was the precursor to the Baby Boom?
Which correctly compares how coal and natural gas are formed?
With respect to global connections, association with _______ offers the brightest immediate future for many African countries. A. the United States. B. the Eur
Which substance can not be broken down by a chemical change? (1) methane (3) tungsten (2) propanal (4) water
A bromine atom in an excited state could have an electron configuration of(1)2-8-18-6 (2) 2-8-18-7 (3) 2-8-17-7 (4) 2-8-17-8
A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times. Three column table. First column values are Section
What is the area of the rectangle? _________ un2
What is 40 + 40 x 0 + 1 =