A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Find the domain
f(x)=(x+2)/(x^21)
anonymous
 one year ago
Find the domain f(x)=(x+2)/(x^21)

This Question is Closed

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2You're looking at the restrictions, so where the denominator is = 0, so solve for \[x^2  1 = 0\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got that part. i don't exactly know how to write it in interval notation tho

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(\[\infty,1]\cup(0,1]\cup(1,\infty)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i don't think i did it right

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2You could write it as such \[(  \infty,  1) \cup (1, \infty)\] because open bracket implies it's not included, a square bracket means, it would be included in the domain.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2of course I forgot 0 xD

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2But you get the point right?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0I used to hate those write in set notation or interval notation parts to the question because I got confused with ( and ]. This was before OpenStudy popped up.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Yeah I can't remember last time I even used interval notation to be honest

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0College Algebra had truckloads... but the thing is it doesn't appear again afterwards.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Yea, I used it in calculus 1, then never saw it again haha...

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434430709134:dw so this is how it looks like in a number line (random example) \[( \infty, 1/2] \cup [3, \infty)\] I think this will make it clear on what exactly is going on.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434430860916:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks this is going to help a lot for the rest of my hw
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.