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 ( 36+ )
Otras preguntas
3. Lord Henry says that youth is the only thing worth having. Do you agree with this statement?
descirbe the weather conditions associated with warm and cold fronts. why do these conditions differ
Write down a few ideas you can include in your journal. Remember to include ideas about story elements and point of view.
These days it seems like almost everyone wants to be greener. A new generation of shoppers wants to do its regular shopping but be less wasteful. If possible, t
1. On what type of land does a primary succession first begin to occur?
3) After measuring the heights of 7 people, they have an average height of 156cm. After measuring the heights of 8 people they have an average height of 158cm.
what role did the south African women play against violation of human rights from 1950s to 1960s
Two sides of an isosceles triangle have lengths 12 and 18. What is the greatest possible value of the perimeter of the triangle? Please help me.
A relief worker needs to divide 1350 bottles of water and 144 cans of food into boxes that each contain the same number of items. Also, each box must contain t
Warm-Up Select all the expressions that are equivalent to [tex]3x-4+2x-6[/tex]. A.x-2 B.5x-2 C.5(x-2) D.5x+10 E.5x-10
