Ask
your own question, for FREE!
Mathematics
55 Online
does anyone know a general statement for something in cartesian form?
Still Need Help?
Join the QuestionCove community and study together with friends!
For complex numbers? a +/- bi
for a circle it is x^2+y^2 = r^2
hm ok i've got z = 3+i / 3-i
multiply the numerator and denominator by the conjugate of 3-i
(3+i)^2 / 9-i^2
Still Need Help?
Join the QuestionCove community and study together with friends!
i^2 = -1
so it is (3+i)^2 /10
or (8+6i)/10
Or (4/5) + (3/5)i...standard form
gah so intuitive i miss it
Still Need Help?
Join the QuestionCove community and study together with friends!
heh, it happens to all of some time or the other :)
i feel like it happens to me all the time, do you know anything i could practice to stop that?
I guess it takes time not to miss these things. In general, if you are dealing with complex numbers, keep a checklist of things you should be on the lookout for 1) conjugates 2) i^2 =-1 that sort of thing.
and everything i've learnt previously :(
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
ShinePrincess:
Write a function that will create the following transformation. Shift f(x) down 3
forgetmylife:
Only the real understand ud83eudd26ud83cudffdu2642ufe0f I'm tired. Tired of the constancy, the constancy of judgment.
rishavraj:
Just trying to find a friend. We met on openstudy, her nickname on there was something "tarantula".
1 hour ago
0 Replies
0 Medals
11 hours ago
2 Replies
1 Medal
2 hours ago
4 Replies
0 Medals