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 ( 68+ )
Otras preguntas
Can someone fill in this table?
An economic system is a society's system of production, distribution and consumption of what
How is light waves observed
Which of the following are the different analysis performed to identify training needs in an organisation?O Organisational, Person and Role AnalysisO Money and
The body of an infographic will include how many sections in total?
Use the CPT manual to select the appropriate CPT code for the following procedure. Excision of benign lesion of scalp, 3.3 cm.
2x+y=5 find variable and isolate it
If we think about consequentialism and hedonism, • a. we would say that hedonism is one concept that is part of a consequentialist ethical perspective. • D. we
1Imagine that you are Yaaba from the "The Late Bud". Write a DIARY ENTRYfrom your own point of the view. You can choose to set it at any point of thestory, eith
Scientists.Write a question for each answer.Are you musicians?1 A:B: Yes, we are. We're musicians.2 A: ...... 2.... ?are scienB: No, they're not teachers. They'
