# imaginary numbers...

• Apr 17th 2011, 10:30 PM
slapmaxwell1
imaginary numbers...
what is the distance between two numbers, one of which is imaginary? say 3+i and x=3?
• Apr 17th 2011, 10:32 PM
mr fantastic
Quote:

Originally Posted by slapmaxwell1
what is the distance between two numbers, one of which is imaginary? say 3+i and x=3?

What is the distance between the two points (3, 1) and (3, 0)?
• Apr 17th 2011, 10:36 PM
slapmaxwell1
thats easy, use the distance formula.... d= sqrt((x-x0)^2 + (y-y0)^2) from there i would just plug and chug
• Apr 17th 2011, 10:38 PM
slapmaxwell1
Quote:

Originally Posted by mr fantastic
What is the distance between the two points (3, 1) and (3, 0)?

i just dont know what to do with the imaginary number...
• Apr 17th 2011, 10:41 PM
mr fantastic
Quote:

Originally Posted by slapmaxwell1
i just dont know what to do with the imaginary number...

I just told you what to do! Again:
What is the distance between the two points (3, 1) and (3, 0)?

(You do know that complex numbers can be represented as points in the complex plane, right ...?)
• Apr 17th 2011, 10:45 PM
slapmaxwell1
Quote:

Originally Posted by mr fantastic
I just told you what to do! Again:
What is the distance between the two points (3, 1) and (3, 0)?

(You do know that complex numbers can be represented as points in the complex plane, right ...?)

yes, i know now. thanks!