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
The period from 1833-1901 in Europe history is called
Secondary evidence is the basis for drawing scientific conclusions. a. True b. False
What is a browser plug-in : a. It is an mp3 file format available on iTunes. b. It is an application that removes the original features of your browser. c. I
Why do store owner want their workers to wear clean, ironed clothing? a. Well groomed employees present a good image to customers. b. Well groomed employees w
The scientific study of mental, emotional, and behavioral disorders is known as _________. a. biopsychology b. sociology c. psychopathology d. anthropology
Add. 6 1/3 + 4 ¾ + 3 7/12 =
Why do you think the delegates at Versailles refused to allow a German delegation to participate in treaty negotiations?
The best synonym for secular is
Using the argumentative pattern to persuade a person to a particular point of view is a form of ______. discussion concourse propaganda
Many in the United States associate home ownership with a. their parents and grandparents. b. the "American Dream." c. buying a car. d. being out of debt.
