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 ( 68+ )
Otras preguntas
Informal agreement negotiated between president-elect rutherford b. hayes's lieutenants and moderate southern democrats that in effect marked the end of reconst
An “infectious disease spread from person to person through sexual contact” is a(n)
wich of the following sentences contains two ideas joined by a connecting worf
Which quantity or quantities must always be the same on both sides of a chemical equation? (a) the number of atoms of each kind (b) the number of molecules of e
Use right triangle DCB to find the trig values for angle D. sinD = cosD = tanD =
Which of the following types of information does not need to be cited in academic writing?
Figure ABCD is a kite. The area of ABCD is 48 square units. The length of line segment BD is 8 units. What is the length of AC? A. 5 units B. 6 units C. 1
What is the value of x? Enter your answer in the box. x =
The method of characterization does the author show in "Shooting an Elephant" based on the excerpt below: "Theoretically — and secretly, of course — I was all
PLEASEEE HELPP ASAP!! WILL GIVE BRAINLIEST AND 20 POINTS!!! What is shown in the diagram? A). A Generator B). A Motor C). A Turbine D). An Electromagnet
