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
Write a complete reaction of succinic acid and acetic anhydride
What is the probability of someone correctly guessing your Social Security number? (Assume all digits 0-9 are available for use)a
write an equation that is perpendicular to the line y = 2x + 13?
lara has a tin of peanuts cashews and pecans she will pick a second nut without looking. how many outcomes are there for her two picks?
which type of gas is filled in lays pack and why?
Tennis balls with a diameter of 2.5 in. are packaged 3 to a can. The can is a cylinder. Find the volume of the space in the can that is not occupied by tennis b
write an equation that is perpendicular to the line y = 2x + 13?
which of the following expressions does not equal: the sixth root of 81x^4y^8 a. (3xy^2)^2/3 b. (3x)^2/3y^4/3 c. (3x^2y^4)^1/3 d. cube root of 9x^2y^4
what is force ?is it desirable or undesirable?
What was the South’s greatest concern when California applied for statehood?
