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May 12th, 2008, 04:19 AM
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| |  Cartesian equation
How do i solve this:
What is the Cartesian equation for the region represented by
Re((8-i) z +3) = 0
Thanks |
May 12th, 2008, 04:55 AM
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Hello, Quote:
Originally Posted by taurus  How do i solve this:
What is the Cartesian equation for the region represented by
Re((8-i) z +3) = 0
Thanks | Write  , x and y are real numbers.
-> 
-> 
--> 
----> 
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May 12th, 2008, 05:16 AM
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So your first step you expanded brackets yes?
so
> (8-i)z
> (8-i)(x+iy)
> 8x + 8y - ix - iy = 8(x+y) - i(x-y)
Which doesnt look like yours. What am i doing wrong? | | The following users thank taurus for this useful post: | | |
May 12th, 2008, 05:17 AM
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Quote:
Originally Posted by taurus So your first step you expanded brackets yes?
so
> (8-i)z
> (8-i)(x+iy)
> 8x + 8y - ix - iy = 8(x+y) - i(x+y)
Which doesnt look like yours. What am i doing wrong? | I'm doing wrong 
Sorry, a little mistake. You're right 
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Last edited by Moo; May 12th, 2008 at 05:35 AM.
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