can some one please help me with the following question:

Attachment 13709

thanks

1234567

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- Nov 6th 2009, 01:49 AM1234567questions on sets
can some one please help me with the following question:

Attachment 13709

thanks

1234567 - Nov 6th 2009, 02:36 AMPlato
For the first consider: .

Now you answer your own question.

For the second one, what mean?

I have never seen it defined in a 'set' context. - Nov 6th 2009, 02:44 AM1234567
thanks got the help,

A^2 and B^2 means the following

let A={1,2} and**B={3,4}**

then A^2={{1,1},{1,2},{2,1},{2,2}}

B^2={{3,3},{3,4},{4,3},{4,4}}

- Nov 6th 2009, 03:23 AMPlato
- Nov 6th 2009, 03:51 AMHallsofIvy
You might also want to think about the situation in which .

- Nov 6th 2009, 09:27 AM1234567
thanks for the help.