# Which of the following functions are odd, even or neither?

• Sep 9th 2012, 01:52 PM
calculus123
Which of the following functions are odd, even or neither?
http://i50.tinypic.com/opcyhl.jpg

This is what I got but I would like to be sure before I submit the work to my professor.

A. Even
B. Neither
C. Odd

Are these correct?
• Sep 9th 2012, 01:55 PM
Plato
Re: Which of the following functions are odd, even or neither?
Quote:

Originally Posted by calculus123
http://i50.tinypic.com/opcyhl.jpg
This is what I got but I would like to be sure before I submit the work to my professor.
A. Even
B. Neither
C. Odd
Are these correct?

One of those is correct.
• Sep 9th 2012, 02:00 PM
calculus123
Re: Which of the following functions are odd, even or neither?
Which one would that be?

Thanks!
• Sep 9th 2012, 02:10 PM
Plato
Re: Which of the following functions are odd, even or neither?
Quote:

Originally Posted by calculus123
Which one would that be?

You tell us. Then we can help.
Show all your work. Why did you answer the way you did?

Hint: $\displaystyle \sin(x)$ is odd; $\displaystyle \cos(x)$ is even; and $\displaystyle |x|$ is even.
• Sep 9th 2012, 05:17 PM
calculus123
Re: Which of the following functions are odd, even or neither?
So I redid my calculations. Are they correct now?

a) Odd
b) Even
c) Odd
• Sep 9th 2012, 05:31 PM
Plato
Re: Which of the following functions are odd, even or neither?
Quote:

Originally Posted by calculus123
So I redid my calculations. Are they correct now?
a) Odd
b) Even
c) Odd

Correct. But was that a guess?
You did not show any work!
• Sep 9th 2012, 07:34 PM
MarkFL
Re: Which of the following functions are odd, even or neither?
Presumably your professor is going to want you to demonstrate that for the even functions you have $\displaystyle f(-x)=f(x)$ and for the odd functions $\displaystyle f(-x)=-f(x)$.
• Sep 9th 2012, 08:52 PM
calculus123
Re: Which of the following functions are odd, even or neither?
Quote:

Originally Posted by Plato
Correct. But was that a guess?
You did not show any work!

It wasn't a guess. I did the work in my notebook but I was just too lazy to post it. Thanks though!