Proofs for Sets: Expert Help and Tips for Math Homework

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SUMMARY

The discussion focuses on seeking assistance for a Math 273 homework problem related to proofs for sets. The user expresses difficulty due to missing lectures and requests tips for solving three specific problems. They have made progress on the first two problems but are struggling with the third, which involves demonstrating that all options for variables a and b satisfy the equation ab=4. The user shares their attempts and seeks guidance on how to approach the proof effectively.

PREREQUISITES
  • Understanding of set theory concepts
  • Familiarity with mathematical proofs
  • Basic algebra skills, particularly with equations
  • Knowledge of the Math 273 curriculum
NEXT STEPS
  • Review set theory and its applications in proofs
  • Study techniques for constructing mathematical proofs
  • Practice solving equations involving multiple variables
  • Explore resources specific to Math 273 coursework
USEFUL FOR

Students enrolled in Math 273, particularly those struggling with proofs and set theory concepts, as well as educators seeking to provide additional support for their students.

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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:
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what have I done?
 
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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