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 ( 93+ )
Otras preguntas
What are 5 independent variables that are in some way related to global warming?
24 jelly sandwiches are made with a 16-ounce jar of jelly, How many ounces of jelly per sandwich is that?
A line passes through the points (-7, -2) and (2, 7). What is its equation in slope-intercept form?
What is the equation of the line that passes through the point (-2,5) and has a slope of -6?
What is the definition of muckrakers
The sum of a number and -2 is no more than six
A = 1 (b1+b2)h Solve For H.
Please be quick! I need this as soon as possible!
.Ted is asked to multiply 104 x 18.72. Howshould he move the decimal point to get thecorrect product?A 2 places to the rightB 1 place to the right© 1 place to t
The peripheral nervous system _________________________________. a. is not linked to the central nervous system b. is composed only of motor neurons c. consists
