(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I don't really know how to ask this, so I'll get straight into an example.

x:x[tex]\in[/tex](-[tex]\infty[/tex],[tex]\infty[/tex]) but x[tex]\neq[/tex]1

x:x[tex]\in[/tex](-[tex]\infty[/tex],1)[tex]\cup[/tex](1,[tex]\infty[/tex])

what is the difference between these two intervals?

2. Relevant equations

3. The attempt at a solution

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Domain and range

**Physics Forums | Science Articles, Homework Help, Discussion**