# Trigonometry

posted by .

Find the domain of the function.
f(x)=x/x^2+1

f(x)=2x^2/x-3

## Similar Questions

3. ### Algebra

I know what the answer is just not how to exopress it. Can someone help me please?
4. ### Algebra

I know what the answer is just not how to exopress it. Can someone help me please?
5. ### math (4)

Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) h(u,v) = sqrt(4-u^2-v^2) u^2+v^2 = ?
6. ### Math

Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) h(u,v) = sqrt(4-u^2-v^2) u^2+v^2 = ?
7. ### math (3)

Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) f(s,t)= sqrt(s^2+t^2) s = ?
8. ### Algebra

I had a question on a quiz that I just finished and I wanted to know if my answer was right. Is 4x-y^=0 a function. If so, what is the domain and range?
9. ### Algebra

Find the domain of the function. Write in interval notation. sqrt(x^2 − 64). For the answer, I got (-infinity, -8)u(8, infinity), but that's wrong, and I'm not sure what else to try?
10. ### Math (Domain and range)

Evaluate the function f(x)={9x+5, x<0 {9x+6, x>(or equal to)0 Determine its domain and range using interval notation?

More Similar Questions