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Consider the function f(x)=2x+6x^(-1). For this function, there are three numbers A<B<C which are either critical or not in the domain of the function.

A=
B=
C=

1 answer

f undefined for x=0
f' = 2-6/x^2
f'=0 when x=±√3

I'll let you sort them out.
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