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 ( 42+ )
Otras preguntas
What kind of character is a type of flat character with one exaggerated personality quality? Foil Stereotype antagonist protagnist
PLEASE HELP FIRST CORRECT ANSWER GETS BRAINLIEST!!!!!!!!!
5x-29>-34 OR 2x+31<29
ARE THESE 2 CORRECT?
A 12 foot ladder is leaning against a building . The ladder makes a 45 degree angle with the building . How far up the building does the ladder reach ?
Which two sentences use coordinate adjectives? The dark, musty cellar was full of mice. We rode down a long dirt road on a sunny morning. The dark-haired, hazel
Which of these were attempts made by President Hoover to eliminate the problems created by the Great Depression?
Ah, love, let us be true To one another! for the world, which seems To lie before us like a land of dreams, So various, so beautiful, so new, Hath
What strategy do historians use to synthesize evidence and draw conclusions
In American society, romantic love is considered the main reason for people to marry. On the other hand, in some societies, romantic love is considered a form o
