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August 25th, 2013, 09:25 AM   #1
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Quick question on Sets?

Given the set J={(x , y): x?? , y?? , 2x?y=4} , and the set
K={( x , y): x?? , y?? , x?2y=1} what does the set J?K represent?

does J?K represent the factors of 4?
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August 25th, 2013, 10:17 AM   #2
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Re: Quick question on Sets?

Quote:
Originally Posted by maths4computing
does J?K represent the factors of 4?
J and K are sets of pairs, so their intersection will also be a set of pairs.

Mechanically, you can write
J?K = {(x , y): x?? , y?? , 2x?y=4 and x?2y=1}
but you should simplify this.
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August 25th, 2013, 01:26 PM   #3
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Re: Quick question on Sets?

Hello, maths4computing!

Quote:







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August 25th, 2013, 01:30 PM   #4
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Re: Quick question on Sets?

Quote:
Originally Posted by soroban
Hello, maths4computing!

Quote:

\,-\,2y\:=\:1" />





I understand, thanks again
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