# Entering interval notation

• Sep 22nd 2012, 05:54 PM
Oldspice1212
Entering interval notation
Find the domain of the functions. Interval notation.

http://www.webassign.net/latexImages...106b241891.gif

and

http://www.webassign.net/latexImages...8652d1a4e2.gif

I don't understand how to do this :S
• Sep 22nd 2012, 06:03 PM
Prove It
Re: Entering interval notation
Quote:

Originally Posted by Oldspice1212
Find the domain of the functions. Interval notation.

http://www.webassign.net/latexImages...106b241891.gif

and

http://www.webassign.net/latexImages...8652d1a4e2.gif

I don't understand how to do this :S

Hint: Polynomial functions, exponential functions and sine/cosine functions are defined for all values of x. That means that so is their sum, difference, product and composition, and their quotients will be defined for all values of x except where the denominator is 0.
• Sep 22nd 2012, 09:14 PM
Oldspice1212
Re: Entering interval notation
I'm not really sure what to do here still :S
• Sep 22nd 2012, 10:42 PM
Prove It
Re: Entering interval notation
I gave you a very big hint. They will be defined everywhere except where the denominators are 0.