Complex number problem

Tiri

10

Find the locus of z if |z+1| +|z-1| = 4

Im not sure where to start?

Reply 1

acontium

15

You can learn what they are by heart or... Sub in z = x+iy :smile:

Posted from TSR Mobile

Reply 2

Tiri

OP

10

expanding it after taking out the modulus leaves me in a mess with square root + square root = 16?

Reply 3

Tiri

OP

10

the answer at the back says 3x^2 +4y^2 = 12

Reply 4

Tiri

OP

10

aint got a scoooby clue.... But I really wanna do this so someone with a brain who would be of assistance??

Reply 5

Muttley79

20

Can you post your working so we can see what you've got so far? Did you use the hint?

Reply 6

TeeEm

19

Original post by Tiri

aint got a scoooby clue.... But I really wanna do this so someone with a brain who would be of assistance??

look at Q133 in this link
http://www.madasmaths.com/archive/maths_booklets/further_topics/various/complex_numbers_part_2_exam_questions.pdf

disappointed in you having to come here and ask questions when you are in the priviliged position to know where to look...

Reply 7

Tiri

OP

10

Original post by TeeEm

look at Q133 in this link
http://www.madasmaths.com/archive/maths_booklets/further_topics/various/complex_numbers_part_2_exam_questions.pdf

disappointed in you having to come here and ask questions when you are in the priviliged position to know where to look...

Just wanted some quick feedback. Did you get my message?

OP

Solved it..

Original post by Tiri

Just wanted some quick feedback. Did you get my message?

your messages do not sound like wanting feedback...

I am very busy all next week, so next week sometime

Complex number problem

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