Question

Asked Mar 13, 2019

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given f(x)=x^{4}-8x^{2}+2, find all x-values such that f(x) has horizontal tangent lines

Step 1

The tangent line is horizontal for the function *f(x) *when *f'(x) = 0. *Find all such points.

Find the derivative of the given function *f(x)=x ^{4}-8x^{2}+2.*

Step 2

Set *f'(x) = 0* and find all such...

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