Wednesday
October 22, 2014

Homework Help: Calculus

Posted by Anonymous on Tuesday, September 1, 2009 at 8:32pm.

I'm doing graphs/domain/range of basic functions. I have three questions:

How do I find the domain and range of a function? (more preferably range...I'm okay but shaky on domain)
Ex: f(x)=1/(x^2)

Also, how do you write the domain and range with notation? Like when you use symbols like
(-infinity, 0) U (0, infinity)
Specifically, how do I write "All real #'s where x cannot equal..."?

One more thing: what does [[x]] mean? The symbol looks like two brackets very close together or something.

Thank you very much!

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