Posted by Amy on Tuesday, October 4, 2011 at 11:18pm.
Find the Domain of f(x)=sqrt(x^34x+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,+∞)
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