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 ( 21+ )
Otras preguntas
a device that does work in an electrical circuit
A window is 4 feet wide and 8 feet tall. A rectangle is shown. The length of the rectangle is labeled 4 feet. The width of the rectangle is labeled 8 feet.
Supply the missing reason (s) for the given proof number 14
For which of the following did President Theodore Roosevelt win the Nobel Prize in 1906? for building the Panama Canal for the Roosevelt Corollary for the Open
Help on logarithmic equation
During the medieval period, which group played an important role in staging plays in various parts of towns? landholders shop owners peasants trade guilds
Which Asian country defeated Russia in war and gained control of Manchuria and Korea? A. Indochina B. Thailand C. Japan D. Taiwan
what oils our joints?
in order for Drix to stay in Frank's body, he"ll need a lawyer. where does Ozzie suggest he go to get one? in, "the biology of osmosis jones"
What happened as the population grew in western territories? (Points : 3) Many people left and returned to the East. New states such as Colorado, the Dakotas, a
