Koljeg
Koljeg
16-07-2014
Mathematics
contestada
(2+7i)(2-7i)= ==========
Respuesta :
Ryan2
Ryan2
16-07-2014
[tex](2+7i)(2-7i)=4-14i+14i-49i^2\\ \\ 4+49=53[/tex]
Answer Link
Аноним
Аноним
16-07-2014
[tex](2+7i)(2-7i)=2^2-(7i)^2=4-49\vfot(-1)=4+49=53\\\\-------------------------------\\i=\sqrt{-1}\\\\i^2=-1[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 65+ )
Otras preguntas
In which system of government would states function independently of each other?
In which sentence does the prepositional phrase act as an adverb? A. Last evening, Anne suffered from a headache. B. The door to the attic was left open. C. Mr
What is the primary purpose of the Supremacy Clause?
the temperature of a sample of matter is a measure of the ?
what are the 2 major types of cofactors?
The sum of three numbers is 84 the second number is 2 times the third the first number is 8 more than the third what are the numbers
in what area of Europe were the majority of warsaw pact countries
How has water influenced the development of civilization in Africa
A youth ice hockey game has 3 periods that are each 20 minutes long. Colin plays 12 minutes each period. Which ratio shows Colin's playing time compared to the
what is the most common type of vegetation throughout Latin America
