Posted by **Amy** on Tuesday, October 4, 2011 at 11:18pm.

Find the Domain of f(x)=sqrt(x^3-4x+1)

- Calculus -
**Steve**, Wednesday, October 5, 2011 at 5:14am
The domain is the values of x where f(x) is defined. The square root requires the radicand to be ≥ 0.

So, x^3 - 4x + 1 ≥ 0

x ∈ [-2.1,0.24] ∪ [1.83,+∞)

## Answer this Question

## Related Questions

- Math - f(x)= 4-x^2 and g(x)= sqrt (x) find the implied domain of fg(x) fg(x)= f(...
- calculus - let f(x)=sqrt(x-3), g(x)=sqrt(x^2+3) Find a formula for f*g and state...
- Calculus I - Find the point on the curve y=x^2 closest to point (0,1) Here's ...
- math-Inverse functions - f(x)=-4x-2 & g(x)=5x-6. Find (f*g) and state domain. f(...
- calculus - A) How do you prove that if 0(<or=)x(<or=)10, then 0(<or=)...
- Calculus - Please look at my work below: Solve the initial-value problem. y'' + ...
- Calculus - Find the domain of the following function h(x,y) = sqrt(x-9y+5)?
- college algebra - For the given functions f and g find the following and state ...
- Calculus - Find the sum and difference functions f + g and f – g for the ...
- is this correct?- math - find the domain of the real valued function; f(x) = ...