What is the local minimum and maximum at f(x) = 9x + 4x^-1

Calculus
Tutor: None Selected Time limit: 1 Day

The function  f(x) = 9x + 4x^-1 has one local minimum and one local maximum.

What is the local maximum and value at x?

What is the local minimum and value at x?

Apr 8th, 2015

local maximum=-12 at x=-2/3

local minimum=12 at x=2/3

Apr 8th, 2015

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