1. ## Entering interval notation

Find the domain of the functions. Interval notation.

and

I don't understand how to do this :S

2. ## Re: Entering interval notation

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

and

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.

3. ## Re: Entering interval notation

I'm not really sure what to do here still :S

4. ## Re: Entering interval notation

I gave you a very big hint. They will be defined everywhere except where the denominators are 0.