annameghan
annameghan
03-10-2017
Mathematics
contestada
rationalize the denominator of (click photo)
Respuesta :
liemonder
liemonder
03-10-2017
[tex]\frac{\sqrt{-49}}{(7-2i)-(4+9i)}=\\ \frac{\sqrt{-1*7*7}}{3-11i}=\\ \frac{7i}{3-11i}*\frac{3+11i}{3+11i}=\\ \frac{(7i)*(3+11i)}{3^2-(11i)^2}=\\ \frac{21i+77i^2}{9+121}=\\ \frac{21i-77}{130}=\\ \frac{-77+21i}{130}[/tex]
so it is the last option
Answer Link
VER TODAS LAS RESPUESTAS ( 73+ )
Otras preguntas
how much mass does water contains?
Which word correctly completes this sentence? we'll need a _____ amount of luck to win the game. a. dry b. senseless c. considerable d. reliable?
What is the term for a potential customer who has shown interest in the company's product?
If someone has an active measles infection, with regard to the chain of infection, what is the term used to describe them?
What is the negative tú command of hablar?
What did ancient india create in response to flooding?
Why did european countries compete for colonies in central africa and east africa??
31.5 grams of an unknown substance is heated to 102.4 degrees Celsius and then placed into a calorimeter containing 103.5 grams of water at 24.5 degrees Celsius
Which event or period in Japan's history best reflects Lord II's concerns
What is always true at the quantity where a firm's average total cost equals average revenue?
