Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2024-09-08 02:44:42
- harpazo65
- Member
- From: Brooklyn, NY
- Registered: 2024-09-07
- Posts: 52
Domain in Set-builder Notation
Given 2/(x - 2) and (x - 2)/(x + 2), find the domain. Express domain in set-builder notation.
For 2/(x - 2):
x - 2 = 0
x = 2
D = {x | x cannot = 2}
For (x - 2)/(x + 2):
x + 2 = 0
x = -2
D = {x | x cannot = -2}
Focus on the journey for there will be those who would love to see you fall.
Offline
#2 2024-09-08 04:58:10
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,610
Re: Domain in Set-builder Notation
Yes, OK.
I would prefer
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
Offline
#3 2024-09-08 08:38:15
- harpazo65
- Member
- From: Brooklyn, NY
- Registered: 2024-09-07
- Posts: 52
Re: Domain in Set-builder Notation
Yes, OK.
I would prefer
Bob
I don't know how to use LaTex. By the way, I don't have a computer or a laptop. Learning LaTex with a cell phone is a nightmare in terms of typing all the details carefully.
Focus on the journey for there will be those who would love to see you fall.
Offline
#4 2024-09-09 00:00:04
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,610
Re: Domain in Set-builder Notation
Fair point. At the top of each post there's a list of symbols you can copy and paste. ≠ is available there. Does your phone allow you to copy any of those.
Whatever, I was happy with your answer as it had the essential bits.
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
Offline
#5 2024-09-09 02:24:04
- harpazo65
- Member
- From: Brooklyn, NY
- Registered: 2024-09-07
- Posts: 52
Re: Domain in Set-builder Notation
Fair point. At the top of each post there's a list of symbols you can copy and paste. ≠ is available there. Does your phone allow you to copy any of those.
Whatever, I was happy with your answer as it had the essential bits.
Bob
I see the symbols at the top of each post. My cell phone does allow me to copy and paste the symbols here but I can copy each symbols found, for example, in Wikipedia and then post here.
Focus on the journey for there will be those who would love to see you fall.
Offline
Pages: 1