Ask
your own question, for FREE!
Mathematics
11 Online
2+i/3-2i
Still Need Help?
Join the QuestionCove community and study together with friends!
multiply with the conjugate of 3-2i??
multiply numerator and denominator with 3+2i
The same question with mapelletah. If it's (2+i)/(3-2i),then it can be calculated as follow: (2+i)/(3-2i)=[(2+i)*(3+2i)]/[(3+2i)*(3-2i)]=(4+7i)/13
i multiplied it and got 6+4i+3i+2i?
2+i(3+2i)
Still Need Help?
Join the QuestionCove community and study together with friends!
nope, it should be 6+4i+3i+2i^2 6+10i-2 as i^2=-1
how do you get 10i?
sry typing error 7i
6+7i^2?
6+7i-2
Still Need Help?
Join the QuestionCove community and study together with friends!
in back of the book it say (4/13)+(7/13i)
*says
6-2+7i is numerator denominator is ( 3-2i)*(3+2i)=9-(4i^2)=9+4=13
which is exactly the answer just think a bit
excuse me? i get how you got 9 from multiplying them but how did you get 4 from 9-(4i^2)?
Still Need Help?
Join the QuestionCove community and study together with friends!
i^2=-1 so 4i^2=-4 we have 9-4i^2=9+4=13
thanks
does that help
alot better
great
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
heartlessprophet:
How do i get paid from work when im in job court ?
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
DoltonCarlee:
So like do y'all know anything about the first world war?
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
18 hours ago
0 Replies
0 Medals
21 hours ago
8 Replies
1 Medal
1 day ago
6 Replies
1 Medal
2 days ago
0 Replies
0 Medals
2 days ago
2 Replies
1 Medal
1 day ago
2 Replies
0 Medals
2 days ago
5 Replies
2 Medals