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Math Proofs help / Sets

  • Thread starter ap0390
  • Start date
  • #1
3
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Homework Statement



hopefully the writing is readable:
http://i.imgur.com/VJ8vN.jpg

All three if possible.

Homework Equations



none

The Attempt at a Solution



To be completely honest, I missed that whole week of lectures due to personal problems and I've had no chance to talk to an instructor or a classmate for some notes before this is due. I'm perfectly fine with just tiny tips here and there.

http://i.imgur.com/4AknY.jpg

My lame attempt at solving the first.
 
Last edited by a moderator:

Answers and Replies

  • #2
3
0
what have I done?
 
  • #3
3
0
I was able to figure out the first two I believe. But at the moment I seem to be stuck on the 3rd. Would it be alright if I was to list all the options a and b have in order for ab=4 and then write that we can see they all work?

This is for a Math 273 course.
 

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