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posted by Amy on Tuesday, October 4, 2011 at 11:18pm.
Find the Domain of f(x)=sqrt(x^3-4x+1)
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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